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/scheduler/algorithm/priorities/interpod_affinity.go

@@ -30,7 +30,7 @@ import (
 	schedulerapi "k8s.io/kubernetes/pkg/scheduler/api"
 	schedulercache "k8s.io/kubernetes/pkg/scheduler/cache"
 
-	"github.com/golang/glog"
+	"k8s.io/klog"
 )
 
 // InterPodAffinity contains information to calculate inter pod affinity.
@@ -137,7 +137,7 @@ func (ipa *InterPodAffinity) CalculateInterPodAffinityPriority(pod *v1.Pod, node
 		existingPodNode, err := ipa.info.GetNodeInfo(existingPod.Spec.NodeName)
 		if err != nil {
 			if apierrors.IsNotFound(err) {
-				glog.Errorf("Node not found, %v", existingPod.Spec.NodeName)
+				klog.Errorf("Node not found, %v", existingPod.Spec.NodeName)
 				return nil
 			}
 			return err
@@ -233,8 +233,8 @@ func (ipa *InterPodAffinity) CalculateInterPodAffinityPriority(pod *v1.Pod, node
 			fScore = float64(schedulerapi.MaxPriority) * ((pm.counts[node.Name] - minCount) / (maxCount - minCount))
 		}
 		result = append(result, schedulerapi.HostPriority{Host: node.Name, Score: int(fScore)})
-		if glog.V(10) {
-			glog.Infof("%v -> %v: InterPodAffinityPriority, Score: (%d)", pod.Name, node.Name, int(fScore))
+		if klog.V(10) {
+			klog.Infof("%v -> %v: InterPodAffinityPriority, Score: (%d)", pod.Name, node.Name, int(fScore))
 		}
 	}
 	return result, nil