message: Add nodelay opt
diff: @@ -67,7 +67,8 @@ public:
  collected_(0),
  max_(1024),
  rd_flag_(net::receive_policy_flag::exactly) {
  - // nop
  + CAF_ASSERT(handle != invalid_socket);
  + nodelay(handle, true);
  }
  // -- member functions -------------------------------------------------------
  