patch lower-case-segops

*** 1274,1285 ****
                           */
  
                          AS_LOCK_ENTER(as, &as->a_lock, RW_READER);
                          seg = as_segat(curproc->p_as, (caddr_t)end);
                          if (seg != NULL)
!                                 SEGOP_GETPROT(seg, (caddr_t)end, zfoddiff - 1,
!                                     &zprot);
                          AS_LOCK_EXIT(as, &as->a_lock);
  
                          if (seg != NULL && (zprot & PROT_WRITE) == 0) {
                                  if (as_setprot(as, (caddr_t)end, zfoddiff - 1,
                                      zprot | PROT_WRITE) == ENOMEM) {
--- 1274,1285 ----
                           */
  
                          AS_LOCK_ENTER(as, &as->a_lock, RW_READER);
                          seg = as_segat(curproc->p_as, (caddr_t)end);
                          if (seg != NULL)
!                                 (void) segop_getprot(seg, (caddr_t)end,
!                                     zfoddiff - 1, &zprot);
                          AS_LOCK_EXIT(as, &as->a_lock);
  
                          if (seg != NULL && (zprot & PROT_WRITE) == 0) {
                                  if (as_setprot(as, (caddr_t)end, zfoddiff - 1,
                                      zprot | PROT_WRITE) == ENOMEM) {