fix bug: grpc conn

Signed-off-by: wangchuxiao <wangchuxiao97@outlook.com>

pkg/discoveryregistry/zookeeper/resolver.go

@@ -75,7 +75,7 @@ func (s *ZkClient) Build(
 	s.logger.Printf("build resolver: %+v, cc: %+v", target, cc.UpdateState)
 	serviceName := strings.TrimLeft(target.URL.Path, "/")
 	if oldResolver, ok := s.resolvers[serviceName]; ok {
-		s.logger.Printf("resolver exist: %+v, cc: %+v, key: %s", target, cc.UpdateState, serviceName)
+		s.logger.Printf("rpc resolver exist: %+v, cc: %+v, key: %s", target, cc.UpdateState, serviceName)
 		return oldResolver, nil
 	}
 	r := &Resolver{}