message: dont use move on return of local object (clang)
diff: @@ -70,7 +70,7 @@ std::unique_ptr<wampcc::tcp_socket> get_tcp_connection(const char* address,
  throw std::runtime_error(std::to_string(ec.os_value()) + ", " + ec.message());
  if (sock->is_connected())
  - return std::move(sock);
  + return sock;
  }
  }
  catch (std::exception& e)
  