update libcontainer,gocapability,cadvisor

vendor/github.com/google/cadvisor/utils/cloudinfo/azure.go

@@ -34,7 +34,7 @@ func onAzure() bool {
 	return strings.Contains(string(data), MicrosoftCorporation)
 }
 
-//TODO: Implement method.
+// TODO: Implement method.
 func getAzureInstanceType() info.InstanceType {
 	return info.UnknownInstance
 }

vendor/github.com/google/cadvisor/utils/cloudinfo/cloudinfo.go

@@ -97,7 +97,7 @@ func detectInstanceID(cloudProvider info.CloudProvider) info.InstanceID {
 	return info.UnNamedInstance
 }
 
-//TODO: Implement method.
+// TODO: Implement method.
 func onBaremetal() bool {
 	return false
 }

vendor/github.com/google/cadvisor/utils/tail/tail.go

@@ -88,7 +88,7 @@ func (t *Tail) attemptOpen() error {
 		t.file, err = os.Open(t.filename)
 		if err == nil {
 			// TODO: not interested in old events?
-			//t.file.Seek(0, os.SEEK_END)
+			// t.file.Seek(0, os.SEEK_END)
 			t.reader = bufio.NewReader(t.file)
 			return nil
 		}