difftool --no-index: error out on --dir-diff (and don't crash)

diff --git a/t/t4025-hunk-header.sh b/t/t4025-hunk-header.sh
index fa44e788695c6f3226ad17cb6e8f2b8e256814ed..35578f2bb91dab8a00f40b5fbb26bd0a31ca7d58 100755 (executable)
--- a/t/t4025-hunk-header.sh
+++ b/t/t4025-hunk-header.sh
@@ -37,7 +37,7 @@ test_expect_success 'hunk header truncation with an overly long line' '
                echo " A $N$N$N$N$N$N$N$N$N2" &&
                echo " L  $N$N$N$N$N$N$N$N$N1"
        ) >expected &&
-       test_cmp actual expected
+       test_cmp expected actual
 
 '