Merge pull request #1964 from rabbitmq/fix-no-return-function

Add a no_return() type spec to silence a Dialyzer warning

(cherry picked from commit c722c96)

Author: michaelklishin

src/rabbit_networking.erl

@@ -367,6 +367,7 @@ force_connection_event_refresh(Ref) ->
     [rabbit_reader:force_event_refresh(C, Ref) || C <- connections()],
     ok.
 
+-spec failed_to_recv_proxy_header(_, _) -> no_return().
 failed_to_recv_proxy_header(Ref, Error) ->
     Msg = case Error of
         closed -> "error when receiving proxy header: TCP socket was ~p prematurely";