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/registry/core/rest/BUILD

@@ -60,7 +60,7 @@ go_library(
         "//staging/src/k8s.io/apiserver/pkg/storage/etcd/util:go_default_library",
         "//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
         "//staging/src/k8s.io/client-go/rest:go_default_library",
-        "//vendor/github.com/golang/glog:go_default_library",
+        "//vendor/k8s.io/klog:go_default_library",
     ],
 )
 

pkg/registry/core/rest/storage_core.go

@@ -25,7 +25,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/golang/glog"
+	"k8s.io/klog"
 
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	utilnet "k8s.io/apimachinery/pkg/util/net"
@@ -260,7 +260,7 @@ func (s componentStatusStorage) serversToValidate() map[string]*componentstatus.
 	for ix, machine := range s.storageFactory.Backends() {
 		etcdUrl, err := url.Parse(machine.Server)
 		if err != nil {
-			glog.Errorf("Failed to parse etcd url for validation: %v", err)
+			klog.Errorf("Failed to parse etcd url for validation: %v", err)
 			continue
 		}
 		var port int
@@ -269,7 +269,7 @@ func (s componentStatusStorage) serversToValidate() map[string]*componentstatus.
 			var portString string
 			addr, portString, err = net.SplitHostPort(etcdUrl.Host)
 			if err != nil {
-				glog.Errorf("Failed to split host/port: %s (%v)", etcdUrl.Host, err)
+				klog.Errorf("Failed to split host/port: %s (%v)", etcdUrl.Host, err)
 				continue
 			}
 			port, _ = strconv.Atoi(portString)