Make command internal

options.go

@@ -28,6 +28,7 @@ type Options struct {
 func newOptions(opts ...Option) Options {
 	opt := Options{
 		Broker:    broker.DefaultBroker,
+		Cmd:       cmd.DefaultCmd,
 		Client:    client.DefaultClient,
 		Server:    server.DefaultServer,
 		Registry:  registry.DefaultRegistry,
@@ -39,14 +40,6 @@ func newOptions(opts ...Option) Options {
 		o(&opt)
 	}
 
-	// New Command
-	if opt.Cmd == nil {
-		opt.Cmd = cmd.NewCmd(
-			cmd.Name(opt.Server.Options().Name),
-			cmd.Version(opt.Server.Options().Version),
-		)
-	}
-
 	return opt
 }