format-patch: respect --stat in cover letter's diffstat

diff --git a/t/t6018-rev-list-glob.sh b/t/t6018-rev-list-glob.sh
index d3453c583c1921a10409c16b5e2cf949edde6cd2..0bf10d0686982418682ff03e3a42ef3a16e2cfb4 100755 (executable)
--- a/t/t6018-rev-list-glob.sh
+++ b/t/t6018-rev-list-glob.sh
@@ -256,31 +256,27 @@ test_expect_success 'rev-list accumulates multiple --exclude' '
 '
 
 test_expect_failure 'rev-list should succeed with empty output on empty stdin' '
-       >expect &&
-       git rev-list --stdin <expect >actual &&
-       test_cmp expect actual
+       git rev-list --stdin </dev/null >actual &&
+       test_must_be_empty actual
 '
 
 test_expect_success 'rev-list should succeed with empty output with all refs excluded' '
-       >expect &&
        git rev-list --exclude=* --all >actual &&
-       test_cmp expect actual
+       test_must_be_empty actual
 '
 
 test_expect_success 'rev-list should succeed with empty output with empty --all' '
        (
                test_create_repo empty &&
                cd empty &&
-               >expect &&
                git rev-list --all >actual &&
-               test_cmp expect actual
+               test_must_be_empty actual
        )
 '
 
 test_expect_success 'rev-list should succeed with empty output with empty glob' '
-       >expect &&
        git rev-list --glob=does-not-match-anything >actual &&
-       test_cmp expect actual
+       test_must_be_empty actual
 '
 
 test_expect_success 'shortlog accepts --glob/--tags/--remotes' '