-/* Parse a single sort specifier and add it to the list */
-void parse_ref_sorting(struct ref_sorting **sorting_tail, const char *atom);
-/* Callback function for parsing the sort option */
-int parse_opt_ref_sorting(const struct option *opt, const char *arg, int unset);
-/* Default sort option based on refname */
-struct ref_sorting *ref_default_sorting(void);