anchor.diff:  %%            {error, Reason}
   %%     end.
   
  -do_delete(Url) ->
  +do_delete(Url, RetryOnOL) ->
       TS = leo_date:now(),
       case send_request(Url, [{"date", leo_http:rfc1123_date(TS)}, {'Authorization', gen_sig("DELETE", Url, TS)}], delete, [], [{response_format, binary}]) of
           {ok, "404", _Headers, _Body} ->
  
positive.code:             ok;
          {ok, "204", _Header, _Body} ->
              ok;
          {ok, Code, _Header, _Body} ->
              {error, {http_error, Code}};
          {error, Reason} ->
              {error, Reason}
      end.
  
  do_put_v4(Url, Headers, Value, ValSHA256) ->
      TS = leo_date:now(),
      {_, _, _, Auth} = gen_sig_v4("PUT", Url, ValSHA256, TS),
      Headers_2 = [
  
negative.code:     end;
  
  run(putv4, KeyGen, _ValueGen, #state{check_integrity = CI,
                                       retry_on_overload = RetryOnOL,
                                       value_source = VS,
                                       value_size_groups = VSG,
                                       id = Id,
  