diff --git a/t/t0000-basic.sh b/t/t0000-basic.sh
index a6e570d674a..705d62cc27a 100755
--- a/t/t0000-basic.sh
+++ b/t/t0000-basic.sh
@@ -271,7 +271,7 @@ test_expect_success 'pretend we have a mix of all possible results' '
 	EOF
 '
 
-test_expect_success C_LOCALE_OUTPUT 'test --verbose' '
+test_expect_success 'test --verbose' '
 	run_sub_test_lib_test_err \
 		t1234-verbose "test verbose" --verbose <<-\EOF &&
 	test_expect_success "passing test" true
diff --git a/t/t0201-gettext-fallbacks.sh b/t/t0201-gettext-fallbacks.sh
index 90da1c7ddc4..a7b3e4a2c73 100755
--- a/t/t0201-gettext-fallbacks.sh
+++ b/t/t0201-gettext-fallbacks.sh
@@ -18,7 +18,7 @@ test_expect_success 'sanity: $GIT_INTERNAL_GETTEXT_TEST_FALLBACKS is set' '
     test -n "$GIT_INTERNAL_GETTEXT_TEST_FALLBACKS"
 '
 
-test_expect_success C_LOCALE_OUTPUT 'sanity: $GIT_INTERNAL_GETTEXT_SH_SCHEME" is fallthrough' '
+test_expect_success 'sanity: $GIT_INTERNAL_GETTEXT_SH_SCHEME" is fallthrough' '
     echo fallthrough >expect &&
     echo $GIT_INTERNAL_GETTEXT_SH_SCHEME >actual &&
     test_cmp expect actual
diff --git a/t/t1430-bad-ref-name.sh b/t/t1430-bad-ref-name.sh
index 354902e514f..b1839e08771 100755
--- a/t/t1430-bad-ref-name.sh
+++ b/t/t1430-bad-ref-name.sh
@@ -125,7 +125,7 @@ test_expect_success 'push cannot create a badly named ref' '
 	! grep -e "broken\.\.\.ref" output
 '
 
-test_expect_failure C_LOCALE_OUTPUT 'push --mirror can delete badly named ref' '
+test_expect_failure 'push --mirror can delete badly named ref' '
 	top=$(pwd) &&
 	git init src &&
 	git init dest &&
diff --git a/t/t1512-rev-parse-disambiguation.sh b/t/t1512-rev-parse-disambiguation.sh
index 242abbfa0bc..7891a6becf3 100755
--- a/t/t1512-rev-parse-disambiguation.sh
+++ b/t/t1512-rev-parse-disambiguation.sh
@@ -314,39 +314,39 @@ test_expect_success 'ambiguous short sha1 ref' '
 	grep "refname.*${REF}.*ambiguous" err
 '
 
-test_expect_success C_LOCALE_OUTPUT 'ambiguity errors are not repeated (raw)' '
+test_expect_success 'ambiguity errors are not repeated (raw)' '
 	test_must_fail git rev-parse 00000 2>stderr &&
 	grep "is ambiguous" stderr >errors &&
 	test_line_count = 1 errors
 '
 
-test_expect_success C_LOCALE_OUTPUT 'ambiguity errors are not repeated (treeish)' '
+test_expect_success 'ambiguity errors are not repeated (treeish)' '
 	test_must_fail git rev-parse 00000:foo 2>stderr &&
 	grep "is ambiguous" stderr >errors &&
 	test_line_count = 1 errors
 '
 
-test_expect_success C_LOCALE_OUTPUT 'ambiguity errors are not repeated (peel)' '
+test_expect_success 'ambiguity errors are not repeated (peel)' '
 	test_must_fail git rev-parse 00000^{commit} 2>stderr &&
 	grep "is ambiguous" stderr >errors &&
 	test_line_count = 1 errors
 '
 
-test_expect_success C_LOCALE_OUTPUT 'ambiguity hints' '
+test_expect_success 'ambiguity hints' '
 	test_must_fail git rev-parse 000000000 2>stderr &&
 	grep ^hint: stderr >hints &&
 	# 16 candidates, plus one intro line
 	test_line_count = 17 hints
 '
 
-test_expect_success C_LOCALE_OUTPUT 'ambiguity hints respect type' '
+test_expect_success 'ambiguity hints respect type' '
 	test_must_fail git rev-parse 000000000^{commit} 2>stderr &&
 	grep ^hint: stderr >hints &&
 	# 5 commits, 1 tag (which is a committish), plus intro line
 	test_line_count = 7 hints
 '
 
-test_expect_success C_LOCALE_OUTPUT 'failed type-selector still shows hint' '
+test_expect_success 'failed type-selector still shows hint' '
 	# these two blobs share the same prefix "ee3d", but neither
 	# will pass for a commit
 	echo 851 | git hash-object --stdin -w &&
@@ -370,7 +370,7 @@ test_expect_success 'core.disambiguate does not override context' '
 		git -c core.disambiguate=committish rev-parse $sha1^{tree}
 '
 
-test_expect_success C_LOCALE_OUTPUT 'ambiguous commits are printed by type first, then hash order' '
+test_expect_success 'ambiguous commits are printed by type first, then hash order' '
 	test_must_fail git rev-parse 0000 2>stderr &&
 	grep ^hint: stderr >hints &&
 	grep 0000 hints >objects &&
diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index 1e738df81d5..dc45552b4d6 100755
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -450,7 +450,7 @@ test_expect_success 'verbose flag is heeded, even after --continue' '
 	grep "^ file1 | 2 +-$" output
 '
 
-test_expect_success C_LOCALE_OUTPUT 'multi-squash only fires up editor once' '
+test_expect_success 'multi-squash only fires up editor once' '
 	base=$(git rev-parse HEAD~4) &&
 	(
 		set_fake_editor &&
@@ -463,7 +463,7 @@ test_expect_success C_LOCALE_OUTPUT 'multi-squash only fires up editor once' '
 	test 1 = $(git show | grep ONCE | wc -l)
 '
 
-test_expect_success C_LOCALE_OUTPUT 'multi-fixup does not fire up editor' '
+test_expect_success 'multi-fixup does not fire up editor' '
 	git checkout -b multi-fixup E &&
 	base=$(git rev-parse HEAD~4) &&
 	(
@@ -514,7 +514,7 @@ test_expect_success 'commit message retained after conflict' '
 	git branch -D conflict-squash
 '
 
-test_expect_success C_LOCALE_OUTPUT 'squash and fixup generate correct log messages' '
+test_expect_success 'squash and fixup generate correct log messages' '
 	cat >expect-squash-fixup <<-\EOF &&
 	B
 
@@ -541,7 +541,7 @@ test_expect_success C_LOCALE_OUTPUT 'squash and fixup generate correct log messa
 	git branch -D squash-fixup
 '
 
-test_expect_success C_LOCALE_OUTPUT 'squash ignores comments' '
+test_expect_success 'squash ignores comments' '
 	git checkout -b skip-comments E &&
 	base=$(git rev-parse HEAD~4) &&
 	(
@@ -557,7 +557,7 @@ test_expect_success C_LOCALE_OUTPUT 'squash ignores comments' '
 	git branch -D skip-comments
 '
 
-test_expect_success C_LOCALE_OUTPUT 'squash ignores blank lines' '
+test_expect_success 'squash ignores blank lines' '
 	git checkout -b skip-blank-lines E &&
 	base=$(git rev-parse HEAD~4) &&
 	(
@@ -995,7 +995,7 @@ test_expect_success 'rebase -ix with several instances of --exec' '
 	test_cmp expected actual
 '
 
-test_expect_success C_LOCALE_OUTPUT 'rebase -ix with --autosquash' '
+test_expect_success 'rebase -ix with --autosquash' '
 	git reset --hard execute &&
 	git checkout -b autosquash &&
 	echo second >second.txt &&
@@ -1136,7 +1136,7 @@ test_expect_success 'rebase -i --root reword root when root has untracked file c
 	test "$(git rev-list --count HEAD)" = 2
 '
 
-test_expect_success C_LOCALE_OUTPUT 'rebase --edit-todo does not work on non-interactive rebase' '
+test_expect_success 'rebase --edit-todo does not work on non-interactive rebase' '
 	git checkout reword-original-root-branch &&
 	git reset --hard &&
 	git checkout conflict-branch &&
diff --git a/t/t3415-rebase-autosquash.sh b/t/t3415-rebase-autosquash.sh
index 36f169d7f15..908016c2f88 100755
--- a/t/t3415-rebase-autosquash.sh
+++ b/t/t3415-rebase-autosquash.sh
@@ -306,23 +306,23 @@ test_auto_fixup_fixup () {
 	fi
 }
 
-test_expect_success C_LOCALE_OUTPUT 'fixup! fixup!' '
+test_expect_success 'fixup! fixup!' '
 	test_auto_fixup_fixup fixup fixup
 '
 
-test_expect_success C_LOCALE_OUTPUT 'fixup! squash!' '
+test_expect_success 'fixup! squash!' '
 	test_auto_fixup_fixup fixup squash
 '
 
-test_expect_success C_LOCALE_OUTPUT 'squash! squash!' '
+test_expect_success 'squash! squash!' '
 	test_auto_fixup_fixup squash squash
 '
 
-test_expect_success C_LOCALE_OUTPUT 'squash! fixup!' '
+test_expect_success 'squash! fixup!' '
 	test_auto_fixup_fixup squash fixup
 '
 
-test_expect_success C_LOCALE_OUTPUT 'autosquash with custom inst format' '
+test_expect_success 'autosquash with custom inst format' '
 	git reset --hard base &&
 	git config --add rebase.instructionFormat "[%an @ %ar] %s"  &&
 	echo 2 >file1 &&
diff --git a/t/t3701-add-interactive.sh b/t/t3701-add-interactive.sh
index b2f90997dbc..ed00c40370b 100755
--- a/t/t3701-add-interactive.sh
+++ b/t/t3701-add-interactive.sh
@@ -370,7 +370,7 @@ test_expect_success 'setup expected' '
 '
 
 # Test splitting the first patch, then adding both
-test_expect_success C_LOCALE_OUTPUT 'add first line works' '
+test_expect_success 'add first line works' '
 	git commit -am "clear local changes" &&
 	git apply patch &&
 	printf "%s\n" s y y | git add -p file 2>error |
diff --git a/t/t4012-diff-binary.sh b/t/t4012-diff-binary.sh
index 6579c81216a..bd59328e4b2 100755
--- a/t/t4012-diff-binary.sh
+++ b/t/t4012-diff-binary.sh
@@ -63,7 +63,7 @@ test_expect_success 'apply --numstat understands diff --binary format' '
 
 # apply needs to be able to skip the binary material correctly
 # in order to report the line number of a corrupt patch.
-test_expect_success C_LOCALE_OUTPUT 'apply detecting corrupt patch correctly' '
+test_expect_success 'apply detecting corrupt patch correctly' '
 	git diff >output &&
 	sed -e "s/-CIT/xCIT/" <output >broken &&
 	test_must_fail git apply --stat --summary broken 2>detected &&
@@ -73,7 +73,7 @@ test_expect_success C_LOCALE_OUTPUT 'apply detecting corrupt patch correctly' '
 	test "$detected" = xCIT
 '
 
-test_expect_success C_LOCALE_OUTPUT 'apply detecting corrupt patch correctly' '
+test_expect_success 'apply detecting corrupt patch correctly' '
 	git diff --binary | sed -e "s/-CIT/xCIT/" >broken &&
 	test_must_fail git apply --stat --summary broken 2>detected &&
 	detected=$(cat detected) &&
diff --git a/t/t4205-log-pretty-formats.sh b/t/t4205-log-pretty-formats.sh
index 749bc1431ac..5ec0f47b567 100755
--- a/t/t4205-log-pretty-formats.sh
+++ b/t/t4205-log-pretty-formats.sh
@@ -126,7 +126,7 @@ test_expect_success 'NUL separation with --stat' '
 	test_i18ncmp expected actual
 '
 
-test_expect_failure C_LOCALE_OUTPUT 'NUL termination with --stat' '
+test_expect_failure 'NUL termination with --stat' '
 	stat0_part=$(git diff --stat HEAD^ HEAD) &&
 	stat1_part=$(git diff-tree --no-commit-id --stat --root HEAD^) &&
 	printf "add bar\n$stat0_part\n\0$(commit_msg)\n$stat1_part\n0" >expected &&
diff --git a/t/t5300-pack-object.sh b/t/t5300-pack-object.sh
index 392201cabdf..d586fdc7a95 100755
--- a/t/t5300-pack-object.sh
+++ b/t/t5300-pack-object.sh
@@ -427,7 +427,7 @@ test_expect_success 'index-pack --strict <pack> works in non-repo' '
 	test_path_is_file foo.idx
 '
 
-test_expect_success !PTHREADS,C_LOCALE_OUTPUT 'index-pack --threads=N or pack.threads=N warns when no pthreads' '
+test_expect_success !PTHREADS 'index-pack --threads=N or pack.threads=N warns when no pthreads' '
 	test_must_fail git index-pack --threads=2 2>err &&
 	grep ^warning: err >warnings &&
 	test_line_count = 1 warnings &&
@@ -445,7 +445,7 @@ test_expect_success !PTHREADS,C_LOCALE_OUTPUT 'index-pack --threads=N or pack.th
 	grep -F "no threads support, ignoring pack.threads" err
 '
 
-test_expect_success !PTHREADS,C_LOCALE_OUTPUT 'pack-objects --threads=N or pack.threads=N warns when no pthreads' '
+test_expect_success !PTHREADS 'pack-objects --threads=N or pack.threads=N warns when no pthreads' '
 	git pack-objects --threads=2 --stdout --all </dev/null >/dev/null 2>err &&
 	grep ^warning: err >warnings &&
 	test_line_count = 1 warnings &&
diff --git a/t/t5505-remote.sh b/t/t5505-remote.sh
index 045398b94e6..d3a3bb0a42b 100755
--- a/t/t5505-remote.sh
+++ b/t/t5505-remote.sh
@@ -59,7 +59,7 @@ test_expect_success 'add remote whose URL agrees with url.<...>.insteadOf' '
 	git remote add myremote git@host.com:team/repo.git
 '
 
-test_expect_success C_LOCALE_OUTPUT 'remote information for the origin' '
+test_expect_success 'remote information for the origin' '
 	(
 		cd test &&
 		tokens_match origin "$(git remote)" &&
@@ -81,7 +81,7 @@ test_expect_success 'add another remote' '
 	)
 '
 
-test_expect_success C_LOCALE_OUTPUT 'check remote-tracking' '
+test_expect_success 'check remote-tracking' '
 	(
 		cd test &&
 		check_remote_track origin main side &&
@@ -107,7 +107,7 @@ test_expect_success 'remove remote' '
 	)
 '
 
-test_expect_success C_LOCALE_OUTPUT 'remove remote' '
+test_expect_success 'remove remote' '
 	(
 		cd test &&
 		tokens_match origin "$(git remote)" &&
diff --git a/t/t5510-fetch.sh b/t/t5510-fetch.sh
index 42f55030047..a37df6d35a7 100755
--- a/t/t5510-fetch.sh
+++ b/t/t5510-fetch.sh
@@ -1097,7 +1097,7 @@ test_expect_success 'fetching with auto-gc does not lock up' '
 	)
 '
 
-test_expect_success C_LOCALE_OUTPUT 'fetch aligned output' '
+test_expect_success 'fetch aligned output' '
 	git clone . full-output &&
 	test_commit looooooooooooong-tag &&
 	(
@@ -1112,7 +1112,7 @@ test_expect_success C_LOCALE_OUTPUT 'fetch aligned output' '
 	test_cmp expect actual
 '
 
-test_expect_success C_LOCALE_OUTPUT 'fetch compact output' '
+test_expect_success 'fetch compact output' '
 	git clone . compact &&
 	test_commit extraaa &&
 	(
diff --git a/t/t5601-clone.sh b/t/t5601-clone.sh
index 664c9138662..e7e6c089554 100755
--- a/t/t5601-clone.sh
+++ b/t/t5601-clone.sh
@@ -40,7 +40,7 @@ test_expect_success 'clone with excess parameters (2)' '
 
 '
 
-test_expect_success C_LOCALE_OUTPUT 'output from clone' '
+test_expect_success 'output from clone' '
 	rm -fr dst &&
 	git clone -n "file://$(pwd)/src" dst >output 2>&1 &&
 	test $(grep Clon output | wc -l) = 1
diff --git a/t/t6423-merge-rename-directories.sh b/t/t6423-merge-rename-directories.sh
index 4ab133f489c..5d3b711fe68 100755
--- a/t/t6423-merge-rename-directories.sh
+++ b/t/t6423-merge-rename-directories.sh
@@ -2905,7 +2905,7 @@ test_setup_9e () {
 	)
 }
 
-test_expect_success C_LOCALE_OUTPUT '9e: N-to-1 whammo' '
+test_expect_success '9e: N-to-1 whammo' '
 	test_setup_9e &&
 	(
 		cd 9e &&
diff --git a/t/t7300-clean.sh b/t/t7300-clean.sh
index cb5e34d94c3..a74816ca8b4 100755
--- a/t/t7300-clean.sh
+++ b/t/t7300-clean.sh
@@ -110,7 +110,7 @@ test_expect_success 'git clean with prefix' '
 
 '
 
-test_expect_success C_LOCALE_OUTPUT 'git clean with relative prefix' '
+test_expect_success 'git clean with relative prefix' '
 
 	mkdir -p build docs &&
 	touch a.out src/part3.c docs/manual.txt obj.o build/lib.so &&
@@ -123,7 +123,7 @@ test_expect_success C_LOCALE_OUTPUT 'git clean with relative prefix' '
 	verbose test "$would_clean" = ../src/part3.c
 '
 
-test_expect_success C_LOCALE_OUTPUT 'git clean with absolute path' '
+test_expect_success 'git clean with absolute path' '
 
 	mkdir -p build docs &&
 	touch a.out src/part3.c docs/manual.txt obj.o build/lib.so &&
@@ -407,7 +407,7 @@ test_expect_success 'clean.requireForce and -f' '
 
 '
 
-test_expect_success C_LOCALE_OUTPUT 'core.excludesfile' '
+test_expect_success 'core.excludesfile' '
 
 	echo excludes >excludes &&
 	echo included >included &&
diff --git a/t/t7505-prepare-commit-msg-hook.sh b/t/t7505-prepare-commit-msg-hook.sh
index 321b4bc0fc6..7a8194ce720 100755
--- a/t/t7505-prepare-commit-msg-hook.sh
+++ b/t/t7505-prepare-commit-msg-hook.sh
@@ -218,7 +218,7 @@ test_expect_success 'with hook and editor (merge)' '
 test_rebase () {
 	expect=$1 &&
 	mode=$2 &&
-	test_expect_$expect C_LOCALE_OUTPUT "with hook (rebase ${mode:--i})" '
+	test_expect_$expect "with hook (rebase ${mode:--i})" '
 		test_when_finished "\
 			git rebase --abort
 			git checkout -f main
@@ -307,7 +307,7 @@ test_expect_success 'with failing hook (merge)' '
 
 '
 
-test_expect_success C_LOCALE_OUTPUT 'with failing hook (cherry-pick)' '
+test_expect_success 'with failing hook (cherry-pick)' '
 	test_when_finished "git checkout -f main" &&
 	git checkout -B other b &&
 	test_must_fail git cherry-pick rebase-1 2>actual &&
diff --git a/t/t7810-grep.sh b/t/t7810-grep.sh
index 8f7591c9ccd..edfaa9a6d1c 100755
--- a/t/t7810-grep.sh
+++ b/t/t7810-grep.sh
@@ -969,7 +969,7 @@ do
 	"
 done
 
-test_expect_success !PTHREADS,C_LOCALE_OUTPUT 'grep --threads=N or pack.threads=N warns when no pthreads' '
+test_expect_success !PTHREADS 'grep --threads=N or pack.threads=N warns when no pthreads' '
 	git grep --threads=2 Hello hello_world 2>err &&
 	grep ^warning: err >warnings &&
 	test_line_count = 1 warnings &&
