smatch: check libld_* allocation functions

*** 460,466 ****
--- 460,469 ----
          if (option_project == PROJ_KERNEL) {
                  add_function_hook("kfree", &match_free_func, (void *)0);
                  register_funcs_from_file();
          } else {
                  add_function_hook("free", &match_free_func, (void *)0);
+                 if (option_project == PROJ_ILLUMOS_USER)
+                         add_function_hook("libld_free", &match_free_func,
+                             (void *)0);
          }
  }