add_ref(): add docstring

diff --git a/commit.h b/commit.h
index c1a723ecdb877bbbb75fe9fcaf98cef7b7edb59b..3745f120994cb6876e1ccc1bfc5e07c6cc3fc5c9 100644 (file)
--- a/commit.h
+++ b/commit.h
@@ -200,6 +200,9 @@ extern int commit_tree_extended(const char *msg, unsigned char *tree,
                                const char *author,
                                struct commit_extra_header *);
 
+extern struct commit_extra_header *read_commit_extra_headers(struct commit *);
+extern struct commit_extra_header *read_commit_extra_header_lines(const char *buf, size_t len);
+
 extern void free_commit_extra_headers(struct commit_extra_header *extra);
 
 struct merge_remote_desc {