/* Find beginning and length of commit subject. */
int find_commit_subject(const char *commit_buffer, const char **subject);
+/* Return length of the commit subject from commit log message. */
+size_t commit_subject_length(const char *body);
+
struct commit_list *commit_list_insert(struct commit *item,
struct commit_list **list);
int commit_list_contains(struct commit *item,