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/probe/tcp/BUILD

@@ -12,7 +12,7 @@ go_library(
     importpath = "k8s.io/kubernetes/pkg/probe/tcp",
     deps = [
         "//pkg/probe:go_default_library",
-        "//vendor/github.com/golang/glog:go_default_library",
+        "//vendor/k8s.io/klog:go_default_library",
     ],
 )
 

pkg/probe/tcp/tcp.go

@@ -23,7 +23,7 @@ import (
 
 	"k8s.io/kubernetes/pkg/probe"
 
-	"github.com/golang/glog"
+	"k8s.io/klog"
 )
 
 // New creates Prober.
@@ -55,7 +55,7 @@ func DoTCPProbe(addr string, timeout time.Duration) (probe.Result, string, error
 	}
 	err = conn.Close()
 	if err != nil {
-		glog.Errorf("Unexpected error closing TCP probe socket: %v (%#v)", err, err)
+		klog.Errorf("Unexpected error closing TCP probe socket: %v (%#v)", err, err)
 	}
 	return probe.Success, "", nil
 }