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/framework/gpu_util.go

@@ -21,8 +21,8 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/uuid"
 
-	"github.com/golang/glog"
 	. "github.com/onsi/gomega"
+	"k8s.io/klog"
 )
 
 const (
@@ -71,15 +71,15 @@ func NVIDIADevicePlugin() *v1.Pod {
 func GetGPUDevicePluginImage() string {
 	ds, err := DsFromManifest(GPUDevicePluginDSYAML)
 	if err != nil {
-		glog.Errorf("Failed to parse the device plugin image: %v", err)
+		klog.Errorf("Failed to parse the device plugin image: %v", err)
 		return ""
 	}
 	if ds == nil {
-		glog.Errorf("Failed to parse the device plugin image: the extracted DaemonSet is nil")
+		klog.Errorf("Failed to parse the device plugin image: the extracted DaemonSet is nil")
 		return ""
 	}
 	if len(ds.Spec.Template.Spec.Containers) < 1 {
-		glog.Errorf("Failed to parse the device plugin image: cannot extract the container from YAML")
+		klog.Errorf("Failed to parse the device plugin image: cannot extract the container from YAML")
 		return ""
 	}
 	return ds.Spec.Template.Spec.Containers[0].Image