chginotifywatchcnt
(void)chginotifywatchcnt(sc->cred->cr_ruidinfo, -1, 0);
if (!chginotifywatchcnt(sc->cred->cr_ruidinfo, 1,
(void)chginotifywatchcnt(sc->cred->cr_ruidinfo, -1, 0);
int chginotifywatchcnt(struct uidinfo *uip, int diff, rlim_t maxval);