P_PGID
(idtype == P_PGID && id != pr->ps_pgid)) {
(idtype == P_PGID && id != pr->ps_pgid))
idtype = P_PGID;
idtype = P_PGID;
if (idtype != P_ALL && idtype != P_PID && idtype != P_PGID)
case P_PGID: