Fix the service manager exits exceptionally issue.

fujuntang

2021-11-16 d52c87dee3aac4af66ad2e1a86094ca27209d816

 src/socket/shm_socket.cpp

@@ -426,7 +426,7 @@
      exit(1);
    }
  }
 

  sendpak.key = tmp_socket->key;
  sendpak.size = send_size;
  if(send_buf != NULL) {