modules/http/http_filters.c:828: error: UNINITIALIZED_VALUE
  The value read from res was never initialized.

modules/http/http_filters.c:828:13: 
826.             bodyoff += res;
827.         }
828.         if (res > 0 && bodybuf < 32) {
                 ^
829.             /* discard_rest_of_request_body into our buffer */
830.             while (ap_get_client_block(r, bodyread, bodylen) > 0)
