smtpd: if?

[Maxime Villard]

Hi,

- - - src/usr.sbin/smtpd/smtpd.c l.1326

        if (! bsnprintf(key, sizeof key,
                "profiling.imsg.%s.%s.%s",
                proc_name(smtpd_process),
                proc_name(p->proc),
                imsg_to_str(imsg->hdr.type)));    <-- ';'
        stat_set(key, stat_timespec(&dt));


What's the goal of the 'if' right there?