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>

1 files changed, 2 insertions, 2 deletions

diff --git a/t/t5703-upload-pack-ref-in-want.sh b/t/t5703-upload-pack-ref-in-want.sh
index df74f80061..191097171b 100755
--- a/t/t5703-upload-pack-ref-in-want.sh
+++ b/t/t5703-upload-pack-ref-in-want.sh
@@ -484,7 +484,7 @@ test_expect_success 'server is initially ahead - no ref in want' '
 	cp -r "$LOCAL_PRISTINE" local &&
 	inconsistency main $(test_oid numeric) &&
 	test_must_fail git -C local fetch 2>err &&
-	test_i18ngrep "fatal: remote error: upload-pack: not our ref" err
+	test_grep "fatal: remote error: upload-pack: not our ref" err
 '
 
 test_expect_success 'server is initially ahead - ref in want' '
@@ -530,7 +530,7 @@ test_expect_success 'server loses a ref - ref in want' '
 	echo "s/main/rain/" >"$HTTPD_ROOT_PATH/one-time-perl" &&
 	test_must_fail git -C local fetch 2>err &&
 
-	test_i18ngrep "fatal: remote error: unknown ref refs/heads/rain" err
+	test_grep "fatal: remote error: unknown ref refs/heads/rain" err
 '
 
 # DO NOT add non-httpd-specific tests here, because the last part of this