mailmap.hon commit git log -g: Complain, but do not fail, when no reflogs are there (7b69b87)
   1#ifndef MAILMAP_H
   2#define MAILMAP_H
   3
   4int read_mailmap(struct path_list *map, const char *filename, char **repo_abbrev);
   5int map_email(struct path_list *mailmap, const char *email, char *name, int maxlen);
   6
   7#endif