anchor.diff:              {tail_not_requested, _} ->
                   end_chunked_response(Socket);
               {_, no_tail} ->
  -                gen_tcp:send(Socket, format_warning(no_tail_warning)),
  +                gen_tcp:send(Socket, no_tail_warning()),
                   end_chunked_response(Socket);
               _ ->
                   ?INFO("at=tail_start channel_id=~p filters=~100p",
  
positive.code:     end.
  
  
  format_warning(Warning) ->
      logplex_utils:format(undefined,
                           logplex_utils:formatted_utc_date(),
                           <<"Logplex">>,
                           logplex_app:config(Warning)).
  
  tail_init(Socket, Buffer, Filters, ChannelId) ->
      inet:setopts(Socket, [{active, once}]),
  
negative.code:         Socket = Req:get(socket),
          Header = case logplex_channel:lookup_flag(no_redis, ChannelId) of
                       no_redis -> ?HDR ++ [{"Tail-warning",
                                             logplex_app:config(no_redis_warning)}];
                       _ -> ?HDR
                   end,
          Req:start_response({200, Header}),
  