t4019 "grep" portability fix

diff --git a/t/t6023-merge-file.sh b/t/t6023-merge-file.sh
index f8942bc8908fb92b1b11580e3554a81377dc3ba1..7dcf39191476f272431e19e10ebb299d6aa55bb1 100755 (executable)
--- a/t/t6023-merge-file.sh
+++ b/t/t6023-merge-file.sh
@@ -54,6 +54,12 @@ deduxit me super semitas jusitiae,
 EOF
 printf "propter nomen suum." >> new4.txt
 
+test_expect_success 'merge with no changes' '
+       cp orig.txt test.txt &&
+       git merge-file test.txt orig.txt orig.txt &&
+       test_cmp test.txt orig.txt
+'
+
 cp new1.txt test.txt
 test_expect_success "merge without conflict" \
        "git merge-file test.txt orig.txt new2.txt"