rewrite all links to issues to k8s links

pkg/kubelet/kubelet.go

@@ -869,7 +869,7 @@ func makePortMappings(container *api.Container) (ports []kubecontainer.PortMappi
 
 		// We need to create some default port name if it's not specified, since
 		// this is necessary for rkt.
-		// https://github.com/GoogleCloudPlatform/kubernetes/issues/7710
+		// http://issue.k8s.io/7710
 		if p.Name == "" {
 			pm.Name = fmt.Sprintf("%s-%s:%d", container.Name, p.Protocol, p.ContainerPort)
 		} else {

pkg/kubelet/rkt/rkt.go

@@ -768,7 +768,7 @@ func (r *runtime) writeDockerAuthConfig(image string, credsSlice []docker.AuthCo
 // TODO(yifan): Now we only support docker images, this should be changed
 // once the format of image is landed, see:
 //
-// https://github.com/GoogleCloudPlatform/kubernetes/issues/7203
+// http://issue.k8s.io/7203
 //
 func (r *runtime) PullImage(image kubecontainer.ImageSpec, pullSecrets []api.Secret) error {
 	img := image.Image