parse_date
date = parse_date(argv[i], now);
date = parse_date(argv[i], now);
date = parse_date(str, now);
lease->renewal = parse_date(cfile);
lease->rebind = parse_date(cfile);
lease->expiry = parse_date(cfile);
time_t parse_date(FILE *);
ts = parse_date(file);
time_t parse_date(time_t dt, char const * str);
cmdcnf->expire_days = parse_date(now, optarg);
cmdcnf->password_days = parse_date(now, optarg);
expire_time = parse_date(now, optarg);
password_time = parse_date(now, optarg);