Teach 'diff' about 'diff' attribute.

diff --git a/dump-cache-tree.c b/dump-cache-tree.c
index 1ccaf5177318f8765205e192abdffc3336c9aacb..1f73f1ea7dfa6a14dedf384c99751e86c8121ff4 100644 (file)
--- a/dump-cache-tree.c
+++ b/dump-cache-tree.c
@@ -33,7 +33,7 @@ static int dump_cache_tree(struct cache_tree *it,
        }
        else {
                dump_one(it, pfx, "");
-               if (memcmp(it->sha1, ref->sha1, 20) ||
+               if (hashcmp(it->sha1, ref->sha1) ||
                    ref->entry_count != it->entry_count ||
                    ref->subtree_nr != it->subtree_nr) {
                        dump_one(ref, pfx, "#(ref) ");