Enable tracing of messages sent by default when using LG

Author: essen

src/rabbit_looking_glass.erl

@@ -29,7 +29,10 @@ boot() ->
             Input = parse_value(Value),
             rabbit_log:info("Enabling Looking Glass profiler, input value: ~p", [Input]),
             {ok, _} = application:ensure_all_started(looking_glass),
-            lg:trace(Input, lg_file_tracer, "traces.lz4", #{mode => profile, running => true})
+            lg:trace(Input, lg_file_tracer, "traces.lz4", #{
+                mode => profile,
+                running => true,
+                send => true})
     end.
 
 parse_value(Value) ->