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/kubelet/pod_container_deletor.go

@@ -19,8 +19,8 @@ package kubelet
 import (
 	"sort"
 
-	"github.com/golang/glog"
 	"k8s.io/apimachinery/pkg/util/wait"
+	"k8s.io/klog"
 	kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
 )
 
@@ -72,7 +72,7 @@ func getContainersToDeleteInPod(filterContainerID string, podStatus *kubecontain
 	}(filterContainerID, podStatus)
 
 	if filterContainerID != "" && matchedContainer == nil {
-		glog.Warningf("Container %q not found in pod's containers", filterContainerID)
+		klog.Warningf("Container %q not found in pod's containers", filterContainerID)
 		return containerStatusbyCreatedList{}
 	}
 
@@ -106,7 +106,7 @@ func (p *podContainerDeletor) deleteContainersInPod(filterContainerID string, po
 		select {
 		case p.worker <- candidate.ID:
 		default:
-			glog.Warningf("Failed to issue the request to remove container %v", candidate.ID)
+			klog.Warningf("Failed to issue the request to remove container %v", candidate.ID)
 		}
 	}
 }