smatch clean rtld

*** 1718,1728 ****
           * should any failures occur.
           */
          rtsz = S_DROUND(sizeof (Rt_map));
          epsz = S_DROUND(sizeof (Rt_elfp));
          lmsz = rtsz + epsz + dynsz;
!         if ((lmp = calloc(lmsz, 1)) == NULL)
                  return (NULL);
          ELFPRV(lmp) = (void *)((uintptr_t)lmp + rtsz);
          DYNINFO(lmp) = (Dyninfo *)((uintptr_t)lmp + rtsz + epsz);
          LMSIZE(lmp) = lmsz;
  
--- 1718,1728 ----
           * should any failures occur.
           */
          rtsz = S_DROUND(sizeof (Rt_map));
          epsz = S_DROUND(sizeof (Rt_elfp));
          lmsz = rtsz + epsz + dynsz;
!         if ((lmp = calloc(1, lmsz)) == NULL)
                  return (NULL);
          ELFPRV(lmp) = (void *)((uintptr_t)lmp + rtsz);
          DYNINFO(lmp) = (Dyninfo *)((uintptr_t)lmp + rtsz + epsz);
          LMSIZE(lmp) = lmsz;
  
*** 2353,2363 ****
           * family searches.
           */
          if (CAPCHAIN(lmp)) {
                  Capchain        *capchain;
  
!                 if ((capchain = calloc(CAPCHAINSZ(lmp), 1)) == NULL)
                          return (NULL);
                  (void) memcpy(capchain, CAPCHAIN(lmp), CAPCHAINSZ(lmp));
                  CAPCHAIN(lmp) = capchain;
          }
  
--- 2353,2363 ----
           * family searches.
           */
          if (CAPCHAIN(lmp)) {
                  Capchain        *capchain;
  
!                 if ((capchain = calloc(1, CAPCHAINSZ(lmp))) == NULL)
                          return (NULL);
                  (void) memcpy(capchain, CAPCHAIN(lmp), CAPCHAINSZ(lmp));
                  CAPCHAIN(lmp) = capchain;
          }