extern enum cmit_fmt get_commit_format(const char *arg);
extern void format_commit_message(const struct commit *commit,
const void *format, struct strbuf *sb);
extern void pretty_print_commit(enum cmit_fmt fmt, const struct commit*,
struct strbuf *,
int abbrev, const char *subject,
extern enum cmit_fmt get_commit_format(const char *arg);
extern void format_commit_message(const struct commit *commit,
const void *format, struct strbuf *sb);
extern void pretty_print_commit(enum cmit_fmt fmt, const struct commit*,
struct strbuf *,
int abbrev, const char *subject,