tests: teach callers of test_i18ngrep to use test_grep

They are equivalents and the former still exists, so as long as the
only change this commit makes are to rewrite test_i18ngrep to
test_grep, there won't be any new bug, even if there still are
callers of test_i18ngrep remaining in the tree, or when merged to
other topics that add new uses of test_i18ngrep.

This patch was produced more or less with

    git grep -l -e 'test_i18ngrep ' 't/t[0-9][0-9][0-9][0-9]-*.sh' |
    xargs perl -p -i -e 's/test_i18ngrep /test_grep /'

and a good way to sanity check the result yourself is to run the
above in a checkout of c4603c1c (test framework: further deprecate
test_i18ngrep, 2023-10-31) and compare the resulting working tree
contents with the result of applying this patch to the same commit.
You'll see that test_i18ngrep in a few t/lib-*.sh files corrected,
in addition to the manual reproduction.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index d9fbabb..00c1f1a 100755
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh
@@ -60,7 +60,7 @@
 	git update-index --add --cacheinfo 160000,$(git rev-parse HEAD),sub &&
 	# missing the .gitmodules file here
 	test_must_fail git submodule init 2>actual &&
-	test_i18ngrep "No url found for submodule path" actual
+	test_grep "No url found for submodule path" actual
 '
 
 test_expect_success 'submodule update aborts on missing .gitmodules file' '
@@ -68,7 +68,7 @@
 	git update-index --add --cacheinfo 160000,$(git rev-parse HEAD),sub &&
 	# missing the .gitmodules file here
 	git submodule update sub 2>actual &&
-	test_i18ngrep "Submodule path .sub. not initialized" actual
+	test_grep "Submodule path .sub. not initialized" actual
 '
 
 test_expect_success 'submodule update aborts on missing gitmodules url' '
@@ -100,7 +100,7 @@
 	) &&
 	test_must_fail git submodule status inner 2>output.err &&
 	rm -fr inner &&
-	test_i18ngrep "^error: .*did not match any file(s) known to git" output.err
+	test_grep "^error: .*did not match any file(s) known to git" output.err
 '
 
 test_expect_success 'setup - repository in init subdirectory' '
@@ -196,7 +196,7 @@
 	git -C addtest submodule add "file://$submodurl/parent" submod-redirected \
 		2>err &&
 	! grep % err &&
-	test_i18ngrep ! "Checking connectivity" err
+	test_grep ! "Checking connectivity" err
 '
 
 test_expect_success 'redirected submodule add --progress does show progress' '
@@ -263,7 +263,7 @@
 		cd addtest &&
 		: >.git/index.lock &&
 		! git submodule add "$submodurl" sub-while-locked 2>output.err &&
-		test_i18ngrep "^fatal: .*index\.lock" output.err &&
+		test_grep "^fatal: .*index\.lock" output.err &&
 		test_path_is_missing sub-while-locked
 	)
 '
@@ -405,7 +405,7 @@
 		cd addtest/sub &&
 		test_must_fail git submodule add ../../ submod3 2>../../output.err
 	) &&
-	test_i18ngrep toplevel output.err
+	test_grep toplevel output.err
 '
 
 test_expect_success 'setup - add an example entry to .gitmodules' '
@@ -486,7 +486,7 @@
 
 test_failure_with_unknown_submodule () {
 	test_must_fail git submodule $1 no-such-submodule 2>output.err &&
-	test_i18ngrep "^error: .*no-such-submodule" output.err
+	test_grep "^error: .*no-such-submodule" output.err
 }
 
 test_expect_success 'init should fail with unknown submodule' '
@@ -644,7 +644,7 @@
 	test_must_fail git config submodule.example.url &&
 
 	git submodule update init 2> update.out &&
-	test_i18ngrep "not initialized" update.out &&
+	test_grep "not initialized" update.out &&
 	test_must_fail git rev-parse --resolve-git-dir init/.git &&
 
 	git submodule update --init init &&
@@ -661,7 +661,7 @@
 	(
 		cd sub &&
 		git submodule update ../init 2>update.out &&
-		test_i18ngrep "not initialized" update.out &&
+		test_grep "not initialized" update.out &&
 		test_must_fail git rev-parse --resolve-git-dir ../init/.git &&
 
 		git submodule update --init ../init
@@ -1121,7 +1121,7 @@
 		cd sub &&
 		git submodule deinit ../init >../output
 	) &&
-	test_i18ngrep "\\.\\./init" output &&
+	test_grep "\\.\\./init" output &&
 	test -z "$(git config --get-regexp "submodule\.example\.")" &&
 	test -n "$(git config --get-regexp "submodule\.example2\.")" &&
 	test -f example2/.git &&
@@ -1136,8 +1136,8 @@
 	git submodule deinit . >actual &&
 	test -z "$(git config --get-regexp "submodule\.example\.")" &&
 	test -z "$(git config --get-regexp "submodule\.example2\.")" &&
-	test_i18ngrep "Cleared directory .init" actual &&
-	test_i18ngrep "Cleared directory .example2" actual &&
+	test_grep "Cleared directory .init" actual &&
+	test_grep "Cleared directory .example2" actual &&
 	rmdir init example2
 '
 
@@ -1149,8 +1149,8 @@
 	git submodule deinit --all >actual &&
 	test -z "$(git config --get-regexp "submodule\.example\.")" &&
 	test -z "$(git config --get-regexp "submodule\.example2\.")" &&
-	test_i18ngrep "Cleared directory .init" actual &&
-	test_i18ngrep "Cleared directory .example2" actual &&
+	test_grep "Cleared directory .init" actual &&
+	test_grep "Cleared directory .example2" actual &&
 	rmdir init example2
 '
 
@@ -1160,8 +1160,8 @@
 	git submodule deinit init example2 >actual &&
 	test -z "$(git config --get-regexp "submodule\.example\.")" &&
 	test -z "$(git config --get-regexp "submodule\.example2\.")" &&
-	test_i18ngrep ! "Cleared directory .init" actual &&
-	test_i18ngrep "Cleared directory .example2" actual &&
+	test_grep ! "Cleared directory .init" actual &&
+	test_grep "Cleared directory .example2" actual &&
 	rmdir init
 '
 
@@ -1173,7 +1173,7 @@
 	test -f example2/.git &&
 	git submodule deinit -f init >actual &&
 	test -z "$(git config --get-regexp "submodule\.example\.")" &&
-	test_i18ngrep "Cleared directory .init" actual &&
+	test_grep "Cleared directory .init" actual &&
 	rmdir init
 '
 
@@ -1185,7 +1185,7 @@
 	test -f example2/.git &&
 	git submodule deinit -f init >actual &&
 	test -z "$(git config --get-regexp "submodule\.example\.")" &&
-	test_i18ngrep "Cleared directory .init" actual &&
+	test_grep "Cleared directory .init" actual &&
 	rmdir init
 '
 
@@ -1200,30 +1200,30 @@
 	test -f example2/.git &&
 	git submodule deinit -f init >actual &&
 	test -z "$(git config --get-regexp "submodule\.example\.")" &&
-	test_i18ngrep "Cleared directory .init" actual &&
+	test_grep "Cleared directory .init" actual &&
 	rmdir init
 '
 
 test_expect_success 'submodule deinit is silent when used on an uninitialized submodule' '
 	git submodule update --init &&
 	git submodule deinit init >actual &&
-	test_i18ngrep "Submodule .example. (.*) unregistered for path .init" actual &&
-	test_i18ngrep "Cleared directory .init" actual &&
+	test_grep "Submodule .example. (.*) unregistered for path .init" actual &&
+	test_grep "Cleared directory .init" actual &&
 	git submodule deinit init >actual &&
-	test_i18ngrep ! "Submodule .example. (.*) unregistered for path .init" actual &&
-	test_i18ngrep "Cleared directory .init" actual &&
+	test_grep ! "Submodule .example. (.*) unregistered for path .init" actual &&
+	test_grep "Cleared directory .init" actual &&
 	git submodule deinit . >actual &&
-	test_i18ngrep ! "Submodule .example. (.*) unregistered for path .init" actual &&
-	test_i18ngrep "Submodule .example2. (.*) unregistered for path .example2" actual &&
-	test_i18ngrep "Cleared directory .init" actual &&
+	test_grep ! "Submodule .example. (.*) unregistered for path .init" actual &&
+	test_grep "Submodule .example2. (.*) unregistered for path .example2" actual &&
+	test_grep "Cleared directory .init" actual &&
 	git submodule deinit . >actual &&
-	test_i18ngrep ! "Submodule .example. (.*) unregistered for path .init" actual &&
-	test_i18ngrep ! "Submodule .example2. (.*) unregistered for path .example2" actual &&
-	test_i18ngrep "Cleared directory .init" actual &&
+	test_grep ! "Submodule .example. (.*) unregistered for path .init" actual &&
+	test_grep ! "Submodule .example2. (.*) unregistered for path .example2" actual &&
+	test_grep "Cleared directory .init" actual &&
 	git submodule deinit --all >actual &&
-	test_i18ngrep ! "Submodule .example. (.*) unregistered for path .init" actual &&
-	test_i18ngrep ! "Submodule .example2. (.*) unregistered for path .example2" actual &&
-	test_i18ngrep "Cleared directory .init" actual &&
+	test_grep ! "Submodule .example. (.*) unregistered for path .init" actual &&
+	test_grep ! "Submodule .example2. (.*) unregistered for path .example2" actual &&
+	test_grep "Cleared directory .init" actual &&
 	rmdir init example2
 '