Differentiate between server error messages and client error messages in kubectl

pkg/kubectl/cmd/portforward.go

@@ -22,6 +22,7 @@ import (
 
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/client/portforward"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl/cmd/util"
 	"github.com/golang/glog"
 	"github.com/spf13/cobra"
 )
@@ -61,20 +62,20 @@ func (f *Factory) NewCmdPortForward() *cobra.Command {
 			}
 
 			namespace, err := f.DefaultNamespace(cmd)
-			checkErr(err)
+			util.CheckErr(err)
 
 			client, err := f.Client(cmd)
-			checkErr(err)
+			util.CheckErr(err)
 
 			pod, err := client.Pods(namespace).Get(flags.pod)
-			checkErr(err)
+			util.CheckErr(err)
 
 			if pod.Status.Phase != api.PodRunning {
 				glog.Fatalf("Unable to execute command because pod is not running. Current status=%v", pod.Status.Phase)
 			}
 
 			config, err := f.ClientConfig(cmd)
-			checkErr(err)
+			util.CheckErr(err)
 
 			signals := make(chan os.Signal, 1)
 			signal.Notify(signals, os.Interrupt)
@@ -93,10 +94,10 @@ func (f *Factory) NewCmdPortForward() *cobra.Command {
 				Suffix("portForward", namespace, flags.pod)
 
 			pf, err := portforward.New(req, config, args, stopCh)
-			checkErr(err)
+			util.CheckErr(err)
 
 			err = pf.ForwardPorts()
-			checkErr(err)
+			util.CheckErr(err)
 		},
 	}
 	cmd.Flags().StringVarP(&flags.pod, "pod", "p", "", "Pod name")