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, 1 insertions, 1 deletions

diff --git a/t/t3402-rebase-merge.sh b/t/t3402-rebase-merge.sh
index e9e03ca..5c67d07 100755
--- a/t/t3402-rebase-merge.sh
+++ b/t/t3402-rebase-merge.sh
@@ -171,7 +171,7 @@ test_expect_success '--reapply-cherry-picks' '
 
 	# Regular rebase fails, because the 1-11 commit is deduplicated
 	test_must_fail git -C repo rebase --merge main 2> err &&
-	test_i18ngrep "error: could not apply.*add 12 in another branch" err &&
+	test_grep "error: could not apply.*add 12 in another branch" err &&
 	git -C repo rebase --abort &&
 
 	# With --reapply-cherry-picks, it works