Bumping k8s version to 1.13.0-beta.1

vendor/k8s.io/client-go/discovery/round_tripper.go

@@ -20,10 +20,10 @@ import (
 	"net/http"
 	"path/filepath"
 
-	"github.com/golang/glog"
 	"github.com/gregjones/httpcache"
 	"github.com/gregjones/httpcache/diskcache"
 	"github.com/peterbourgon/diskv"
+	"k8s.io/klog"
 )
 
 type cacheRoundTripper struct {
@@ -55,7 +55,7 @@ func (rt *cacheRoundTripper) CancelRequest(req *http.Request) {
 	if cr, ok := rt.rt.Transport.(canceler); ok {
 		cr.CancelRequest(req)
 	} else {
-		glog.Errorf("CancelRequest not implemented by %T", rt.rt.Transport)
+		klog.Errorf("CancelRequest not implemented by %T", rt.rt.Transport)
 	}
 }