clean up and optimize nth_packed_object_sha1() usage

diff --git a/revision.h b/revision.h
index 6ae39e6bec180769df0bccccdf652ad0ffd784f0..55e6b531ce3e5838f988ca1896484333e795f192 100644 (file)
--- a/revision.h
+++ b/revision.h
@@ -46,7 +46,8 @@ struct rev_info {
                        boundary:2,
                        left_right:1,
                        parents:1,
-                       reverse:1;
+                       reverse:1,
+                       first_parent_only:1;
 
        /* Diff flags */
        unsigned int    diff:1,