#define CHECK_REF_FORMAT_WILDCARD (-3)
extern int check_ref_format(const char *target);
+extern const char *prettify_refname(const char *refname);
+extern char *shorten_unambiguous_ref(const char *ref, int strict);
+
/** rename ref, return 0 on success **/
extern int rename_ref(const char *oldref, const char *newref, const char *logmsg);