cluster: adjust log level for pd querying failure when display

pkg/cluster/manager.go

@@ -605,7 +605,7 @@ func (m *Manager) Display(clusterName string, opt operator.Options) error {
 		// Check if TiKV's label set correctly
 		pdClient := api.NewPDClient(pdList, 10*time.Second, tlsCfg)
 		if lbs, err := pdClient.GetLocationLabels(); err != nil {
-			color.Yellow("\nWARN: get location labels from pd failed: %v", err)
+			log.Debugf("get location labels from pd failed: %v", err)
 		} else if err := spec.CheckTiKVLabels(lbs, pdClient); err != nil {
 			color.Yellow("\nWARN: there is something wrong with TiKV labels, which may cause data losing:\n%v", err)
 		}