tests: unpack-trees: update to use test_i18n* functions

diff --git a/t/t3320-notes-merge-worktrees.sh b/t/t3320-notes-merge-worktrees.sh
index 1f71d589f5f2fc6ed690bce7202bece04d8b0279..522157b76461cfd781cb69dc1ce8bddb2a03517e 100755 (executable)
--- a/t/t3320-notes-merge-worktrees.sh
+++ b/t/t3320-notes-merge-worktrees.sh
@@ -52,7 +52,7 @@ test_expect_success 'merge z into y while mid-merge in another workdir fails' '
                cd worktree &&
                git config core.notesRef refs/notes/y &&
                test_must_fail git notes merge z 2>err &&
-               grep "A notes merge into refs/notes/y is already in-progress at" err
+               test_i18ngrep "A notes merge into refs/notes/y is already in-progress at" err
        ) &&
        test_path_is_missing .git/worktrees/worktree/NOTES_MERGE_REF
 '