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/pods_container_manager_test.go

@@ -27,9 +27,9 @@ import (
 	"k8s.io/kubernetes/test/e2e/framework"
 	imageutils "k8s.io/kubernetes/test/utils/image"
 
-	"github.com/golang/glog"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
+	"k8s.io/klog"
 )
 
 // getResourceList returns a ResourceList with the
@@ -71,7 +71,7 @@ func makePodToVerifyCgroups(cgroupNames []string) *v1.Pod {
 		cgroupName := cm.NewCgroupName(rootCgroupName, cgroupComponents...)
 		cgroupFsNames = append(cgroupFsNames, toCgroupFsName(cgroupName))
 	}
-	glog.Infof("expecting %v cgroups to be found", cgroupFsNames)
+	klog.Infof("expecting %v cgroups to be found", cgroupFsNames)
 	// build the pod command to either verify cgroups exist
 	command := ""
 	for _, cgroupFsName := range cgroupFsNames {