int log_tree_commit(struct rev_info *, struct commit *);
int log_tree_opt_parse(struct rev_info *, const char **, int);
void show_log(struct rev_info *opt);
-void format_decorations(struct strbuf *sb, const struct commit *commit, int use_color);
+void format_decorations_extended(struct strbuf *sb, const struct commit *commit,
+ int use_color,
+ const char *prefix,
+ const char *separator,
+ const char *suffix);
+#define format_decorations(strbuf, commit, color) \
+ format_decorations_extended((strbuf), (commit), (color), " (", ", ", ")")
void show_decorations(struct rev_info *opt, struct commit *commit);
void log_write_email_headers(struct rev_info *opt, struct commit *commit,
const char **subject_p,