Add tests to catch problems with un-unlinkable symlinks

diff --git a/t/t5510-fetch.sh b/t/t5510-fetch.sh
index 9b948c14e6f92e8154373154b32a6d450ead47af..6946557c677ccc190309cd5961b046c420174f7d 100755 (executable)
--- a/t/t5510-fetch.sh
+++ b/t/t5510-fetch.sh
@@ -249,7 +249,7 @@ test_expect_success 'bundle should record HEAD correctly' '
        do
                echo "$(git rev-parse --verify $h) $h"
        done >expect &&
-       diff -u expect actual
+       test_cmp expect actual
 
 '