stop writing pointer to stdout

lib/app/app.go

@@ -118,7 +118,7 @@ func (a *App) ActionPrint(_ *cli.Context) error {
 	if err != nil {
 		return err
 	}
-	fmt.Print(a.Out, node.Stringify())
+	fmt.Fprint(a.Out, node.Stringify())
 	return nil
 }
 
@@ -126,7 +126,7 @@ func (a *App) ActionPrint(_ *cli.Context) error {
 func (a *App) ActionMetrics(ctx *cli.Context) error {
 	addr := ctx.String("http")
 	http.HandleFunc("/metrics", a.HandleMetrics)
-	log.Println(a.Out, "listen on: "+addr)
+	log.Println("listen on: " + addr)
 	return http.ListenAndServe(addr, nil)
 }