tests: make test_must_fail more verbose

diff --git a/t/t3030-merge-recursive.sh b/t/t3030-merge-recursive.sh
index d541544537d47587abad8d27565cf9197387cfd6..efe2900a372601848248de33188bda292185ba40 100755 (executable)
--- a/t/t3030-merge-recursive.sh
+++ b/t/t3030-merge-recursive.sh
@@ -294,7 +294,7 @@ test_expect_success 'fail if the index has unresolved entries' '
        grep "You have not concluded your merge" out &&
        rm -f .git/MERGE_HEAD &&
        test_must_fail git merge "$c5" 2> out &&
-       grep "Your local changes to .* would be overwritten by merge." out
+       grep "Your local changes to the following files would be overwritten by merge:" out
 '
 
 test_expect_success 'merge-recursive remove conflict' '