t5520: test for failure if index has unresolved entries

diff --git a/combine-diff.c b/combine-diff.c
index 60cb4f81f9788efeff21d05d48f2183e94765385..91edce58e15b82428fcc5f3b006e23bf5380d38c 100644 (file)
--- a/combine-diff.c
+++ b/combine-diff.c
@@ -1407,7 +1407,8 @@ void diff_tree_combined(const unsigned char *sha1,
                show_log(rev);
 
                if (rev->verbose_header && opt->output_format &&
-                   opt->output_format != DIFF_FORMAT_NO_OUTPUT)
+                   opt->output_format != DIFF_FORMAT_NO_OUTPUT &&
+                   !commit_format_is_empty(rev->commit_format))
                        printf("%s%c", diff_line_prefix(opt),
                               opt->line_termination);
        }