test: caution on our version of 'yes'

diff --git a/t/t7201-co.sh b/t/t7201-co.sh
index 826987ca804fbd74bc06467446c99b7b4a27ea3e..72b9b375baa6b26d0bca91c0c2d214cd4a9b8a42 100755 (executable)
--- a/t/t7201-co.sh
+++ b/t/t7201-co.sh
@@ -254,9 +254,9 @@ test_expect_success 'checkout to detach HEAD (with advice declined)' '
 test_expect_success 'checkout to detach HEAD' '
        git config advice.detachedHead true &&
        git checkout -f renamer && git clean -f &&
-       git checkout renamer^ 2>messages &&
-       test_i18ngrep "HEAD is now at 7329388" messages &&
-       (test_line_count -gt 1 messages || test -n "$GETTEXT_POISON") &&
+       GIT_TEST_GETTEXT_POISON= git checkout renamer^ 2>messages &&
+       grep "HEAD is now at 7329388" messages &&
+       test_line_count -gt 1 messages &&
        H=$(git rev-parse --verify HEAD) &&
        M=$(git show-ref -s --verify refs/heads/master) &&
        test "z$H" = "z$M" &&