diff --git a/t/t0000-basic.sh b/t/t0000-basic.sh
index 502375bdf6..a6e570d674 100755
--- a/t/t0000-basic.sh
+++ b/t/t0000-basic.sh
@@ -135,77 +135,77 @@ check_sub_test_lib_test_err () {
 	)
 }
 
-test_expect_success 'pretend we have a fully passing test suite' "
-	run_sub_test_lib_test full-pass '3 passing tests' <<-\\EOF &&
+test_expect_success 'pretend we have a fully passing test suite' '
+	run_sub_test_lib_test full-pass "3 passing tests" <<-\EOF &&
 	for i in 1 2 3
 	do
-		test_expect_success \"passing test #\$i\" 'true'
+		test_expect_success "passing test #$i" "true"
 	done
 	test_done
 	EOF
-	check_sub_test_lib_test full-pass <<-\\EOF
+	check_sub_test_lib_test full-pass <<-\EOF
 	> ok 1 - passing test #1
 	> ok 2 - passing test #2
 	> ok 3 - passing test #3
 	> # passed all 3 test(s)
 	> 1..3
 	EOF
-"
+'
 
-test_expect_success 'pretend we have a partially passing test suite' "
+test_expect_success 'pretend we have a partially passing test suite' '
 	run_sub_test_lib_test_err \
-		partial-pass '2/3 tests passing' <<-\\EOF &&
-	test_expect_success 'passing test #1' 'true'
-	test_expect_success 'failing test #2' 'false'
-	test_expect_success 'passing test #3' 'true'
+		partial-pass "2/3 tests passing" <<-\EOF &&
+	test_expect_success "passing test #1" "true"
+	test_expect_success "failing test #2" "false"
+	test_expect_success "passing test #3" "true"
 	test_done
 	EOF
-	check_sub_test_lib_test partial-pass <<-\\EOF
+	check_sub_test_lib_test partial-pass <<-\EOF
 	> ok 1 - passing test #1
 	> not ok 2 - failing test #2
 	#	false
 	> ok 3 - passing test #3
 	> # failed 1 among 3 test(s)
 	> 1..3
 	EOF
-"
+'
 
-test_expect_success 'pretend we have a known breakage' "
-	run_sub_test_lib_test failing-todo 'A failing TODO test' <<-\\EOF &&
-	test_expect_success 'passing test' 'true'
-	test_expect_failure 'pretend we have a known breakage' 'false'
+test_expect_success 'pretend we have a known breakage' '
+	run_sub_test_lib_test failing-todo "A failing TODO test" <<-\EOF &&
+	test_expect_success "passing test" "true"
+	test_expect_failure "pretend we have a known breakage" "false"
 	test_done
 	EOF
-	check_sub_test_lib_test failing-todo <<-\\EOF
+	check_sub_test_lib_test failing-todo <<-\EOF
 	> ok 1 - passing test
 	> not ok 2 - pretend we have a known breakage # TODO known breakage
 	> # still have 1 known breakage(s)
 	> # passed all remaining 1 test(s)
 	> 1..2
 	EOF
-"
+'
 
-test_expect_success 'pretend we have fixed a known breakage' "
-	run_sub_test_lib_test passing-todo 'A passing TODO test' <<-\\EOF &&
-	test_expect_failure 'pretend we have fixed a known breakage' 'true'
+test_expect_success 'pretend we have fixed a known breakage' '
+	run_sub_test_lib_test passing-todo "A passing TODO test" <<-\EOF &&
+	test_expect_failure "pretend we have fixed a known breakage" "true"
 	test_done
 	EOF
-	check_sub_test_lib_test passing-todo <<-\\EOF
+	check_sub_test_lib_test passing-todo <<-\EOF
 	> ok 1 - pretend we have fixed a known breakage # TODO known breakage vanished
 	> # 1 known breakage(s) vanished; please update test(s)
 	> 1..1
 	EOF
-"
+'
 
-test_expect_success 'pretend we have fixed one of two known breakages (run in sub test-lib)' "
+test_expect_success 'pretend we have fixed one of two known breakages (run in sub test-lib)' '
 	run_sub_test_lib_test partially-passing-todos \
-		'2 TODO tests, one passing' <<-\\EOF &&
-	test_expect_failure 'pretend we have a known breakage' 'false'
-	test_expect_success 'pretend we have a passing test' 'true'
-	test_expect_failure 'pretend we have fixed another known breakage' 'true'
+		"2 TODO tests, one passing" <<-\EOF &&
+	test_expect_failure "pretend we have a known breakage" "false"
+	test_expect_success "pretend we have a passing test" "true"
+	test_expect_failure "pretend we have fixed another known breakage" "true"
 	test_done
 	EOF
-	check_sub_test_lib_test partially-passing-todos <<-\\EOF
+	check_sub_test_lib_test partially-passing-todos <<-\EOF
 	> not ok 1 - pretend we have a known breakage # TODO known breakage
 	> ok 2 - pretend we have a passing test
 	> ok 3 - pretend we have fixed another known breakage # TODO known breakage vanished
@@ -214,17 +214,17 @@ test_expect_success 'pretend we have fixed one of two known breakages (run in su
 	> # passed all remaining 1 test(s)
 	> 1..3
 	EOF
-"
+'
 
-test_expect_success 'pretend we have a pass, fail, and known breakage' "
+test_expect_success 'pretend we have a pass, fail, and known breakage' '
 	run_sub_test_lib_test_err \
-		mixed-results1 'mixed results #1' <<-\\EOF &&
-	test_expect_success 'passing test' 'true'
-	test_expect_success 'failing test' 'false'
-	test_expect_failure 'pretend we have a known breakage' 'false'
+		mixed-results1 "mixed results #1" <<-\EOF &&
+	test_expect_success "passing test" "true"
+	test_expect_success "failing test" "false"
+	test_expect_failure "pretend we have a known breakage" "false"
 	test_done
 	EOF
-	check_sub_test_lib_test mixed-results1 <<-\\EOF
+	check_sub_test_lib_test mixed-results1 <<-\EOF
 	> ok 1 - passing test
 	> not ok 2 - failing test
 	> #	false
@@ -233,24 +233,24 @@ test_expect_success 'pretend we have a pass, fail, and known breakage' "
 	> # failed 1 among remaining 2 test(s)
 	> 1..3
 	EOF
-"
+'
 
-test_expect_success 'pretend we have a mix of all possible results' "
+test_expect_success 'pretend we have a mix of all possible results' '
 	run_sub_test_lib_test_err \
-		mixed-results2 'mixed results #2' <<-\\EOF &&
-	test_expect_success 'passing test' 'true'
-	test_expect_success 'passing test' 'true'
-	test_expect_success 'passing test' 'true'
-	test_expect_success 'passing test' 'true'
-	test_expect_success 'failing test' 'false'
-	test_expect_success 'failing test' 'false'
-	test_expect_success 'failing test' 'false'
-	test_expect_failure 'pretend we have a known breakage' 'false'
-	test_expect_failure 'pretend we have a known breakage' 'false'
-	test_expect_failure 'pretend we have fixed a known breakage' 'true'
+		mixed-results2 "mixed results #2" <<-\EOF &&
+	test_expect_success "passing test" "true"
+	test_expect_success "passing test" "true"
+	test_expect_success "passing test" "true"
+	test_expect_success "passing test" "true"
+	test_expect_success "failing test" "false"
+	test_expect_success "failing test" "false"
+	test_expect_success "failing test" "false"
+	test_expect_failure "pretend we have a known breakage" "false"
+	test_expect_failure "pretend we have a known breakage" "false"
+	test_expect_failure "pretend we have fixed a known breakage" "true"
 	test_done
 	EOF
-	check_sub_test_lib_test mixed-results2 <<-\\EOF
+	check_sub_test_lib_test mixed-results2 <<-\EOF
 	> ok 1 - passing test
 	> ok 2 - passing test
 	> ok 3 - passing test
@@ -269,7 +269,7 @@ test_expect_success 'pretend we have a mix of all possible results' "
 	> # failed 3 among remaining 7 test(s)
 	> 1..10
 	EOF
-"
+'
 
 test_expect_success C_LOCALE_OUTPUT 'test --verbose' '
 	run_sub_test_lib_test_err \
@@ -321,39 +321,39 @@ test_expect_success 'test --verbose-only' '
 	EOF
 '
 
-test_expect_success 'GIT_SKIP_TESTS' "
+test_expect_success 'GIT_SKIP_TESTS' '
 	(
-		GIT_SKIP_TESTS='git.2' && export GIT_SKIP_TESTS &&
+		GIT_SKIP_TESTS="git.2" && export GIT_SKIP_TESTS &&
 		run_sub_test_lib_test git-skip-tests-basic \
-			'GIT_SKIP_TESTS' <<-\\EOF &&
+			"GIT_SKIP_TESTS" <<-\EOF &&
 		for i in 1 2 3
 		do
-			test_expect_success \"passing test #\$i\" 'true'
+			test_expect_success "passing test #$i" "true"
 		done
 		test_done
 		EOF
-		check_sub_test_lib_test git-skip-tests-basic <<-\\EOF
+		check_sub_test_lib_test git-skip-tests-basic <<-\EOF
 		> ok 1 - passing test #1
 		> ok 2 # skip passing test #2 (GIT_SKIP_TESTS)
 		> ok 3 - passing test #3
 		> # passed all 3 test(s)
 		> 1..3
 		EOF
 	)
-"
+'
 
-test_expect_success 'GIT_SKIP_TESTS several tests' "
+test_expect_success 'GIT_SKIP_TESTS several tests' '
 	(
-		GIT_SKIP_TESTS='git.2 git.5' && export GIT_SKIP_TESTS &&
+		GIT_SKIP_TESTS="git.2 git.5" && export GIT_SKIP_TESTS &&
 		run_sub_test_lib_test git-skip-tests-several \
-			'GIT_SKIP_TESTS several tests' <<-\\EOF &&
+			"GIT_SKIP_TESTS several tests" <<-\EOF &&
 		for i in 1 2 3 4 5 6
 		do
-			test_expect_success \"passing test #\$i\" 'true'
+			test_expect_success "passing test #$i" "true"
 		done
 		test_done
 		EOF
-		check_sub_test_lib_test git-skip-tests-several <<-\\EOF
+		check_sub_test_lib_test git-skip-tests-several <<-\EOF
 		> ok 1 - passing test #1
 		> ok 2 # skip passing test #2 (GIT_SKIP_TESTS)
 		> ok 3 - passing test #3
@@ -364,20 +364,20 @@ test_expect_success 'GIT_SKIP_TESTS several tests' "
 		> 1..6
 		EOF
 	)
-"
+'
 
-test_expect_success 'GIT_SKIP_TESTS sh pattern' "
+test_expect_success 'GIT_SKIP_TESTS sh pattern' '
 	(
-		GIT_SKIP_TESTS='git.[2-5]' && export GIT_SKIP_TESTS &&
+		GIT_SKIP_TESTS="git.[2-5]" && export GIT_SKIP_TESTS &&
 		run_sub_test_lib_test git-skip-tests-sh-pattern \
-			'GIT_SKIP_TESTS sh pattern' <<-\\EOF &&
+			"GIT_SKIP_TESTS sh pattern" <<-\EOF &&
 		for i in 1 2 3 4 5 6
 		do
-			test_expect_success \"passing test #\$i\" 'true'
+			test_expect_success "passing test #$i" "true"
 		done
 		test_done
 		EOF
-		check_sub_test_lib_test git-skip-tests-sh-pattern <<-\\EOF
+		check_sub_test_lib_test git-skip-tests-sh-pattern <<-\EOF
 		> ok 1 - passing test #1
 		> ok 2 # skip passing test #2 (GIT_SKIP_TESTS)
 		> ok 3 # skip passing test #3 (GIT_SKIP_TESTS)
@@ -388,56 +388,56 @@ test_expect_success 'GIT_SKIP_TESTS sh pattern' "
 		> 1..6
 		EOF
 	)
-"
+'
 
-test_expect_success 'GIT_SKIP_TESTS entire suite' "
+test_expect_success 'GIT_SKIP_TESTS entire suite' '
 	(
-		GIT_SKIP_TESTS='git' && export GIT_SKIP_TESTS &&
+		GIT_SKIP_TESTS="git" && export GIT_SKIP_TESTS &&
 		run_sub_test_lib_test git-skip-tests-entire-suite \
-			'GIT_SKIP_TESTS entire suite' <<-\\EOF &&
+			"GIT_SKIP_TESTS entire suite" <<-\EOF &&
 		for i in 1 2 3
 		do
-			test_expect_success \"passing test #\$i\" 'true'
+			test_expect_success "passing test #$i" "true"
 		done
 		test_done
 		EOF
-		check_sub_test_lib_test git-skip-tests-entire-suite <<-\\EOF
+		check_sub_test_lib_test git-skip-tests-entire-suite <<-\EOF
 		> 1..0 # SKIP skip all tests in git
 		EOF
 	)
-"
+'
 
-test_expect_success 'GIT_SKIP_TESTS does not skip unmatched suite' "
+test_expect_success 'GIT_SKIP_TESTS does not skip unmatched suite' '
 	(
-		GIT_SKIP_TESTS='notgit' && export GIT_SKIP_TESTS &&
+		GIT_SKIP_TESTS="notgit" && export GIT_SKIP_TESTS &&
 		run_sub_test_lib_test git-skip-tests-unmatched-suite \
-			'GIT_SKIP_TESTS does not skip unmatched suite' <<-\\EOF &&
+			"GIT_SKIP_TESTS does not skip unmatched suite" <<-\EOF &&
 		for i in 1 2 3
 		do
-			test_expect_success \"passing test #\$i\" 'true'
+			test_expect_success "passing test #$i" "true"
 		done
 		test_done
 		EOF
-		check_sub_test_lib_test git-skip-tests-unmatched-suite <<-\\EOF
+		check_sub_test_lib_test git-skip-tests-unmatched-suite <<-\EOF
 		> ok 1 - passing test #1
 		> ok 2 - passing test #2
 		> ok 3 - passing test #3
 		> # passed all 3 test(s)
 		> 1..3
 		EOF
 	)
-"
+'
 
-test_expect_success '--run basic' "
+test_expect_success '--run basic' '
 	run_sub_test_lib_test run-basic \
-		'--run basic' --run='1,3,5' <<-\\EOF &&
+		"--run basic" --run="1,3,5" <<-\EOF &&
 	for i in 1 2 3 4 5 6
 	do
-		test_expect_success \"passing test #\$i\" 'true'
+		test_expect_success "passing test #$i" "true"
 	done
 	test_done
 	EOF
-	check_sub_test_lib_test run-basic <<-\\EOF
+	check_sub_test_lib_test run-basic <<-\EOF
 	> ok 1 - passing test #1
 	> ok 2 # skip passing test #2 (--run)
 	> ok 3 - passing test #3
@@ -447,18 +447,18 @@ test_expect_success '--run basic' "
 	> # passed all 6 test(s)
 	> 1..6
 	EOF
-"
+'
 
-test_expect_success '--run with a range' "
+test_expect_success '--run with a range' '
 	run_sub_test_lib_test run-range \
-		'--run with a range' --run='1-3' <<-\\EOF &&
+		"--run with a range" --run="1-3" <<-\EOF &&
 	for i in 1 2 3 4 5 6
 	do
-		test_expect_success \"passing test #\$i\" 'true'
+		test_expect_success "passing test #$i" "true"
 	done
 	test_done
 	EOF
-	check_sub_test_lib_test run-range <<-\\EOF
+	check_sub_test_lib_test run-range <<-\EOF
 	> ok 1 - passing test #1
 	> ok 2 - passing test #2
 	> ok 3 - passing test #3
@@ -468,18 +468,18 @@ test_expect_success '--run with a range' "
 	> # passed all 6 test(s)
 	> 1..6
 	EOF
-"
+'
 
-test_expect_success '--run with two ranges' "
+test_expect_success '--run with two ranges' '
 	run_sub_test_lib_test run-two-ranges \
-		'--run with two ranges' --run='1-2,5-6' <<-\\EOF &&
+		"--run with two ranges" --run="1-2,5-6" <<-\EOF &&
 	for i in 1 2 3 4 5 6
 	do
-		test_expect_success \"passing test #\$i\" 'true'
+		test_expect_success "passing test #$i" "true"
 	done
 	test_done
 	EOF
-	check_sub_test_lib_test run-two-ranges <<-\\EOF
+	check_sub_test_lib_test run-two-ranges <<-\EOF
 	> ok 1 - passing test #1
 	> ok 2 - passing test #2
 	> ok 3 # skip passing test #3 (--run)
@@ -489,18 +489,18 @@ test_expect_success '--run with two ranges' "
 	> # passed all 6 test(s)
 	> 1..6
 	EOF
-"
+'
 
-test_expect_success '--run with a left open range' "
+test_expect_success '--run with a left open range' '
 	run_sub_test_lib_test run-left-open-range \
-		'--run with a left open range' --run='-3' <<-\\EOF &&
+		"--run with a left open range" --run="-3" <<-\EOF &&
 	for i in 1 2 3 4 5 6
 	do
-		test_expect_success \"passing test #\$i\" 'true'
+		test_expect_success "passing test #$i" "true"
 	done
 	test_done
 	EOF
-	check_sub_test_lib_test run-left-open-range <<-\\EOF
+	check_sub_test_lib_test run-left-open-range <<-\EOF
 	> ok 1 - passing test #1
 	> ok 2 - passing test #2
 	> ok 3 - passing test #3
@@ -510,18 +510,18 @@ test_expect_success '--run with a left open range' "
 	> # passed all 6 test(s)
 	> 1..6
 	EOF
-"
+'
 
-test_expect_success '--run with a right open range' "
+test_expect_success '--run with a right open range' '
 	run_sub_test_lib_test run-right-open-range \
-		'--run with a right open range' --run='4-' <<-\\EOF &&
+		"--run with a right open range" --run="4-" <<-\EOF &&
 	for i in 1 2 3 4 5 6
 	do
-		test_expect_success \"passing test #\$i\" 'true'
+		test_expect_success "passing test #$i" "true"
 	done
 	test_done
 	EOF
-	check_sub_test_lib_test run-right-open-range <<-\\EOF
+	check_sub_test_lib_test run-right-open-range <<-\EOF
 	> ok 1 # skip passing test #1 (--run)
 	> ok 2 # skip passing test #2 (--run)
 	> ok 3 # skip passing test #3 (--run)
@@ -531,18 +531,18 @@ test_expect_success '--run with a right open range' "
 	> # passed all 6 test(s)
 	> 1..6
 	EOF
-"
+'
 
-test_expect_success '--run with basic negation' "
+test_expect_success '--run with basic negation' '
 	run_sub_test_lib_test run-basic-neg \
-		'--run with basic negation' --run='"'!3'"' <<-\\EOF &&
+		"--run with basic negation" --run="!3" <<-\EOF &&
 	for i in 1 2 3 4 5 6
 	do
-		test_expect_success \"passing test #\$i\" 'true'
+		test_expect_success "passing test #$i" "true"
 	done
 	test_done
 	EOF
-	check_sub_test_lib_test run-basic-neg <<-\\EOF
+	check_sub_test_lib_test run-basic-neg <<-\EOF
 	> ok 1 - passing test #1
 	> ok 2 - passing test #2
 	> ok 3 # skip passing test #3 (--run)
@@ -552,18 +552,18 @@ test_expect_success '--run with basic negation' "
 	> # passed all 6 test(s)
 	> 1..6
 	EOF
-"
+'
 
-test_expect_success '--run with two negations' "
+test_expect_success '--run with two negations' '
 	run_sub_test_lib_test run-two-neg \
-		'--run with two negations' --run='"'!3,!6'"' <<-\\EOF &&
+		"--run with two negations" --run="!3,!6" <<-\EOF &&
 	for i in 1 2 3 4 5 6
 	do
-		test_expect_success \"passing test #\$i\" 'true'
+		test_expect_success "passing test #$i" "true"
 	done
 	test_done
 	EOF
-	check_sub_test_lib_test run-two-neg <<-\\EOF
+	check_sub_test_lib_test run-two-neg <<-\EOF
 	> ok 1 - passing test #1
 	> ok 2 - passing test #2
 	> ok 3 # skip passing test #3 (--run)
@@ -573,18 +573,18 @@ test_expect_success '--run with two negations' "
 	> # passed all 6 test(s)
 	> 1..6
 	EOF
-"
+'
 
-test_expect_success '--run a range and negation' "
+test_expect_success '--run a range and negation' '
 	run_sub_test_lib_test run-range-and-neg \
-		'--run a range and negation' --run='"'-4,!2'"' <<-\\EOF &&
+		"--run a range and negation" --run="-4,!2" <<-\EOF &&
 	for i in 1 2 3 4 5 6
 	do
-		test_expect_success \"passing test #\$i\" 'true'
+		test_expect_success "passing test #$i" "true"
 	done
 	test_done
 	EOF
-	check_sub_test_lib_test run-range-and-neg <<-\\EOF
+	check_sub_test_lib_test run-range-and-neg <<-\EOF
 	> ok 1 - passing test #1
 	> ok 2 # skip passing test #2 (--run)
 	> ok 3 - passing test #3
@@ -594,18 +594,18 @@ test_expect_success '--run a range and negation' "
 	> # passed all 6 test(s)
 	> 1..6
 	EOF
-"
+'
 
-test_expect_success '--run range negation' "
+test_expect_success '--run range negation' '
 	run_sub_test_lib_test run-range-neg \
-		'--run range negation' --run='"'!1-3'"' <<-\\EOF &&
+		"--run range negation" --run="!1-3" <<-\EOF &&
 	for i in 1 2 3 4 5 6
 	do
-		test_expect_success \"passing test #\$i\" 'true'
+		test_expect_success "passing test #$i" "true"
 	done
 	test_done
 	EOF
-	check_sub_test_lib_test run-range-neg <<-\\EOF
+	check_sub_test_lib_test run-range-neg <<-\EOF
 	> ok 1 # skip passing test #1 (--run)
 	> ok 2 # skip passing test #2 (--run)
 	> ok 3 # skip passing test #3 (--run)
@@ -615,19 +615,19 @@ test_expect_success '--run range negation' "
 	> # passed all 6 test(s)
 	> 1..6
 	EOF
-"
+'
 
-test_expect_success '--run include, exclude and include' "
+test_expect_success '--run include, exclude and include' '
 	run_sub_test_lib_test run-inc-neg-inc \
-		'--run include, exclude and include' \
-		--run='"'1-5,!1-3,2'"' <<-\\EOF &&
+		"--run include, exclude and include" \
+		--run="1-5,!1-3,2" <<-\EOF &&
 	for i in 1 2 3 4 5 6
 	do
-		test_expect_success \"passing test #\$i\" 'true'
+		test_expect_success "passing test #$i" "true"
 	done
 	test_done
 	EOF
-	check_sub_test_lib_test run-inc-neg-inc <<-\\EOF
+	check_sub_test_lib_test run-inc-neg-inc <<-\EOF
 	> ok 1 # skip passing test #1 (--run)
 	> ok 2 - passing test #2
 	> ok 3 # skip passing test #3 (--run)
@@ -637,19 +637,19 @@ test_expect_success '--run include, exclude and include' "
 	> # passed all 6 test(s)
 	> 1..6
 	EOF
-"
+'
 
-test_expect_success '--run include, exclude and include, comma separated' "
+test_expect_success '--run include, exclude and include, comma separated' '
 	run_sub_test_lib_test run-inc-neg-inc-comma \
-		'--run include, exclude and include, comma separated' \
-		--run=1-5,\!1-3,2 <<-\\EOF &&
+		"--run include, exclude and include, comma separated" \
+		--run=1-5,!1-3,2 <<-\EOF &&
 	for i in 1 2 3 4 5 6
 	do
-		test_expect_success \"passing test #\$i\" 'true'
+		test_expect_success "passing test #$i" "true"
 	done
 	test_done
 	EOF
-	check_sub_test_lib_test run-inc-neg-inc-comma <<-\\EOF
+	check_sub_test_lib_test run-inc-neg-inc-comma <<-\EOF
 	> ok 1 # skip passing test #1 (--run)
 	> ok 2 - passing test #2
 	> ok 3 # skip passing test #3 (--run)
@@ -659,19 +659,19 @@ test_expect_success '--run include, exclude and include, comma separated' "
 	> # passed all 6 test(s)
 	> 1..6
 	EOF
-"
+'
 
-test_expect_success '--run exclude and include' "
+test_expect_success '--run exclude and include' '
 	run_sub_test_lib_test run-neg-inc \
-		'--run exclude and include' \
-		--run='"'!3-,5'"' <<-\\EOF &&
+		"--run exclude and include" \
+		--run="!3-,5" <<-\EOF &&
 	for i in 1 2 3 4 5 6
 	do
-		test_expect_success \"passing test #\$i\" 'true'
+		test_expect_success "passing test #$i" "true"
 	done
 	test_done
 	EOF
-	check_sub_test_lib_test run-neg-inc <<-\\EOF
+	check_sub_test_lib_test run-neg-inc <<-\EOF
 	> ok 1 - passing test #1
 	> ok 2 - passing test #2
 	> ok 3 # skip passing test #3 (--run)
@@ -681,19 +681,19 @@ test_expect_success '--run exclude and include' "
 	> # passed all 6 test(s)
 	> 1..6
 	EOF
-"
+'
 
-test_expect_success '--run empty selectors' "
+test_expect_success '--run empty selectors' '
 	run_sub_test_lib_test run-empty-sel \
-		'--run empty selectors' \
-		--run='1,,3,,,5' <<-\\EOF &&
+		"--run empty selectors" \
+		--run="1,,3,,,5" <<-\EOF &&
 	for i in 1 2 3 4 5 6
 	do
-		test_expect_success \"passing test #\$i\" 'true'
+		test_expect_success "passing test #$i" "true"
 	done
 	test_done
 	EOF
-	check_sub_test_lib_test run-empty-sel <<-\\EOF
+	check_sub_test_lib_test run-empty-sel <<-\EOF
 	> ok 1 - passing test #1
 	> ok 2 # skip passing test #2 (--run)
 	> ok 3 - passing test #3
@@ -703,20 +703,20 @@ test_expect_success '--run empty selectors' "
 	> # passed all 6 test(s)
 	> 1..6
 	EOF
-"
+'
 
-test_expect_success '--run substring selector' "
+test_expect_success '--run substring selector' '
 	run_sub_test_lib_test run-substring-selector \
-		'--run empty selectors' \
-		--run='relevant' <<-\\EOF &&
-	test_expect_success \"relevant test\" 'true'
+		"--run empty selectors" \
+		--run="relevant" <<-\EOF &&
+	test_expect_success "relevant test" "true"
 	for i in 1 2 3 4 5 6
 	do
-		test_expect_success \"other test #\$i\" 'true'
+		test_expect_success "other test #$i" "true"
 	done
 	test_done
 	EOF
-	check_sub_test_lib_test run-substring-selector <<-\\EOF
+	check_sub_test_lib_test run-substring-selector <<-\EOF
 	> ok 1 - relevant test
 	> ok 2 # skip other test #1 (--run)
 	> ok 3 # skip other test #2 (--run)
@@ -727,37 +727,37 @@ test_expect_success '--run substring selector' "
 	> # passed all 7 test(s)
 	> 1..7
 	EOF
-"
+'
 
-test_expect_success '--run keyword selection' "
+test_expect_success '--run keyword selection' '
 	run_sub_test_lib_test_err run-inv-range-start \
-		'--run invalid range start' \
-		--run='a-5' <<-\\EOF &&
-	test_expect_success \"passing test #1\" 'true'
+		"--run invalid range start" \
+		--run="a-5" <<-\EOF &&
+	test_expect_success "passing test #1" "true"
 	test_done
 	EOF
 	check_sub_test_lib_test_err run-inv-range-start \
-		<<-\\EOF_OUT 3<<-\\EOF_ERR
+		<<-\EOF_OUT 3<<-EOF_ERR
 	> FATAL: Unexpected exit with code 1
 	EOF_OUT
-	> error: --run: invalid non-numeric in range start: 'a-5'
+	> error: --run: invalid non-numeric in range start: ${SQ}a-5${SQ}
 	EOF_ERR
-"
+'
 
-test_expect_success '--run invalid range end' "
+test_expect_success '--run invalid range end' '
 	run_sub_test_lib_test_err run-inv-range-end \
-		'--run invalid range end' \
-		--run='1-z' <<-\\EOF &&
-	test_expect_success \"passing test #1\" 'true'
+		"--run invalid range end" \
+		--run="1-z" <<-\EOF &&
+	test_expect_success "passing test #1" "true"
 	test_done
 	EOF
 	check_sub_test_lib_test_err run-inv-range-end \
-		<<-\\EOF_OUT 3<<-\\EOF_ERR
+		<<-\EOF_OUT 3<<-EOF_ERR
 	> FATAL: Unexpected exit with code 1
 	EOF_OUT
-	> error: --run: invalid non-numeric in range end: '1-z'
+	> error: --run: invalid non-numeric in range end: ${SQ}1-z${SQ}
 	EOF_ERR
-"
+'
 
 test_expect_success 'tests respect prerequisites' '
 	run_sub_test_lib_test prereqs "tests respect prereqs" <<-\EOF &&
@@ -839,18 +839,18 @@ test_expect_success 'nested lazy prerequisites' '
 	EOF
 '
 
-test_expect_success 'lazy prereqs do not turn off tracing' "
+test_expect_success 'lazy prereqs do not turn off tracing' '
 	run_sub_test_lib_test lazy-prereq-and-tracing \
-		'lazy prereqs and -x' -v -x <<-\\EOF &&
+		"lazy prereqs and -x" -v -x <<-\EOF &&
 	test_lazy_prereq LAZY true
 
-	test_expect_success lazy 'test_have_prereq LAZY && echo trace'
+	test_expect_success lazy "test_have_prereq LAZY && echo trace"
 
 	test_done
 	EOF
 
-	grep 'echo trace' lazy-prereq-and-tracing/err
-"
+	grep "echo trace" lazy-prereq-and-tracing/err
+'
 
 test_expect_success 'tests clean up after themselves' '
 	run_sub_test_lib_test cleanup "test with cleanup" <<-\EOF &&
@@ -872,20 +872,20 @@ test_expect_success 'tests clean up after themselves' '
 	EOF
 '
 
-test_expect_success 'tests clean up even on failures' "
+test_expect_success 'tests clean up even on failures' '
 	run_sub_test_lib_test_err \
-		failing-cleanup 'Failing tests with cleanup commands' <<-\\EOF &&
-	test_expect_success 'tests clean up even after a failure' '
+		failing-cleanup "Failing tests with cleanup commands" <<-\EOF &&
+	test_expect_success "tests clean up even after a failure" "
 		touch clean-after-failure &&
 		test_when_finished rm clean-after-failure &&
 		(exit 1)
-	'
-	test_expect_success 'failure to clean up causes the test to fail' '
+	"
+	test_expect_success "failure to clean up causes the test to fail" "
 		test_when_finished \"(exit 2)\"
-	'
+	"
 	test_done
 	EOF
-	check_sub_test_lib_test failing-cleanup <<-\\EOF
+	check_sub_test_lib_test failing-cleanup <<-\EOF
 	> not ok 1 - tests clean up even after a failure
 	> #	Z
 	> #	touch clean-after-failure &&
@@ -894,30 +894,30 @@ test_expect_success 'tests clean up even on failures' "
 	> #	Z
 	> not ok 2 - failure to clean up causes the test to fail
 	> #	Z
-	> #	test_when_finished \"(exit 2)\"
+	> #	test_when_finished "(exit 2)"
 	> #	Z
 	> # failed 2 among 2 test(s)
 	> 1..2
 	EOF
-"
+'
 
-test_expect_success 'test_atexit is run' "
+test_expect_success 'test_atexit is run' '
 	run_sub_test_lib_test_err \
-		atexit-cleanup 'Run atexit commands' -i <<-\\EOF &&
-	test_expect_success 'tests clean up even after a failure' '
+		atexit-cleanup "Run atexit commands" -i <<-\EOF &&
+	test_expect_success "tests clean up even after a failure" "
 		> ../../clean-atexit &&
 		test_atexit rm ../../clean-atexit &&
 		> ../../also-clean-atexit &&
 		test_atexit rm ../../also-clean-atexit &&
 		> ../../dont-clean-atexit &&
 		(exit 1)
-	'
+	"
 	test_done
 	EOF
 	test_path_is_file dont-clean-atexit &&
 	test_path_is_missing clean-atexit &&
 	test_path_is_missing also-clean-atexit
-"
+'
 
 test_expect_success 'test_oid provides sane info by default' '
 	test_oid zero >actual &&
