graph.h in rugged-1.4.2

- old
+ new

@@ -31,9 +31,10 @@
  * @param ahead number of unique from commits in `upstream`
  * @param behind number of unique from commits in `local`
  * @param repo the repository where the commits exist
  * @param local the commit for local
  * @param upstream the commit for upstream
+ * @return 0 or an error code.
  */
 GIT_EXTERN(int) git_graph_ahead_behind(size_t *ahead, size_t *behind, git_repository *repo, const git_oid *local, const git_oid *upstream);
 
 
 /**