M_NONE
sp->s_flags |= M_NONE;
if (sp->s_flags & M_NONE) (void) printf("M_NONE ");
if ((perm & (M_ROOT | M_NONE | M_MAP)) == 0) {
if ((perm & (M_ROOT | M_NONE | M_MAP)) == 0 && (ngroups_max <= NGRPS ||