message: fix add slave border
diff: @@ -123,7 +123,7 @@ void TrysyncCmd::Do() {
  LOG(INFO) << "Trysync, Slave ip: " << slave_ip_ << "Slave port:" << slave_port_
  << " filenum: " << filenum_ << " pro_offset: " << pro_offset_;
  int64_t sid = g_pika_server->TryAddSlave(slave_ip_, slave_port_);
  - if (sid > 0) {
  + if (sid >= 0) {
  Status status = g_pika_server->AddBinlogSender(slave_ip_, slave_port_,
  filenum_, pro_offset_);
  if (status.ok()) {
  