log_write_email_headers  952 builtin/log.c  	log_write_email_headers(rev, head, &pp.subject, &pp.after_subject,
log_write_email_headers  607 log-tree.c     		log_write_email_headers(opt, commit, &ctx.subject, &extra_headers,
log_write_email_headers   24 log-tree.h     void log_write_email_headers(struct rev_info *opt, struct commit *commit,