Move from glog to klog

- Move from the old github.com/golang/glog to k8s.io/klog
- klog as explicit InitFlags() so we add them as necessary
- we update the other repositories that we vendor that made a similar
change from glog to klog
  * github.com/kubernetes/repo-infra
  * k8s.io/gengo/
  * k8s.io/kube-openapi/
  * github.com/google/cadvisor
- Entirely remove all references to glog
- Fix some tests by explicit InitFlags in their init() methods

Change-Id: I92db545ff36fcec83afe98f550c9e630098b3135

pkg/util/node/BUILD

@@ -18,7 +18,7 @@ go_library(
         "//staging/src/k8s.io/apimachinery/pkg/util/strategicpatch:go_default_library",
         "//staging/src/k8s.io/client-go/kubernetes:go_default_library",
         "//staging/src/k8s.io/client-go/kubernetes/typed/core/v1:go_default_library",
-        "//vendor/github.com/golang/glog:go_default_library",
+        "//vendor/k8s.io/klog:go_default_library",
     ],
 )
 

pkg/util/node/node.go

@@ -24,7 +24,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/golang/glog"
+	"k8s.io/klog"
 
 	"k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -100,12 +100,12 @@ func GetNodeIP(client clientset.Interface, hostname string) net.IP {
 	var nodeIP net.IP
 	node, err := client.CoreV1().Nodes().Get(hostname, metav1.GetOptions{})
 	if err != nil {
-		glog.Warningf("Failed to retrieve node info: %v", err)
+		klog.Warningf("Failed to retrieve node info: %v", err)
 		return nil
 	}
 	nodeIP, err = GetNodeHostIP(node)
 	if err != nil {
-		glog.Warningf("Failed to retrieve node IP: %v", err)
+		klog.Warningf("Failed to retrieve node IP: %v", err)
 		return nil
 	}
 	return nodeIP