smatch: check libld_* allocation functions

*** 38,47 ****
  void check_freeing_null(int id)
  {
          my_id = id;
          if (!option_spammy)
                  return;
!         if (option_project == PROJ_KERNEL)
                  add_function_hook("kfree", &match_free, NULL);
!         else
                  add_function_hook("free", &match_free, NULL);
  }
--- 38,51 ----
  void check_freeing_null(int id)
  {
          my_id = id;
          if (!option_spammy)
                  return;
!         if (option_project == PROJ_KERNEL) {
                  add_function_hook("kfree", &match_free, NULL);
!         } else {
                  add_function_hook("free", &match_free, NULL);
+         }
+ 
+         if (option_project == PROJ_ILLUMOS_USER)
+                 add_function_hook("libld_free", &match_free, NULL);
  }