message: Fix: use of an uninitialized variable
  Reference: Coverity CID
diff: @@ -487,7 +487,7 @@ static int swClient_tcp_pipe(swClient *cli, int write_fd, int flags)
  }
  int socktype;
  - socklen_t length;
  + socklen_t length = sizeof(socktype);
  if (flags & SW_CLIENT_PIPE_TCP_SESSION)
  {
  