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

test/e2e_node/builder/BUILD

@@ -11,7 +11,7 @@ go_library(
     importpath = "k8s.io/kubernetes/test/e2e_node/builder",
     deps = [
         "//test/utils:go_default_library",
-        "//vendor/github.com/golang/glog:go_default_library",
+        "//vendor/k8s.io/klog:go_default_library",
     ],
 )
 

test/e2e_node/builder/build.go

@@ -24,7 +24,7 @@ import (
 	"path/filepath"
 	"strings"
 
-	"github.com/golang/glog"
+	"k8s.io/klog"
 	"k8s.io/kubernetes/test/utils"
 )
 
@@ -38,7 +38,7 @@ var buildTargets = []string{
 }
 
 func BuildGo() error {
-	glog.Infof("Building k8s binaries...")
+	klog.Infof("Building k8s binaries...")
 	k8sRoot, err := utils.GetK8sRootDir()
 	if err != nil {
 		return fmt.Errorf("failed to locate kubernetes root directory %v.", err)
@@ -90,7 +90,7 @@ func getK8sBin(bin string) (string, error) {
 func GetKubeletServerBin() string {
 	bin, err := getK8sBin("kubelet")
 	if err != nil {
-		glog.Fatalf("Could not locate kubelet binary %v.", err)
+		klog.Fatalf("Could not locate kubelet binary %v.", err)
 	}
 	return bin
 }