Explain

Author: Simon MacMullen

src/rabbit_reader.erl

@@ -1079,6 +1079,8 @@ emit_stats(State) ->
     %% If we emit an event which looks like we are in flow control, it's not a
     %% good idea for it to be our last even if we go idle. Keep emitting
     %% events, either we stay busy or we drop out of flow control.
+    %% The 5 is to match the test in formatters.js:fmt_connection_state().
+    %% This magic number will go away when bug 24829 is merged.
     case proplists:get_value(last_blocked_age, Infos) < 5 of
         true -> ensure_stats_timer(State1);
         _    -> State1