Fix coding standards in application files

app/controllers/api/playlists_controller.rb

@@ -5,14 +5,15 @@ module API
     end
 
     def create
-      @playlist = current_user.playlists.build(playlist_params)
+      @playlist = current_user.playlists.build playlist_params
       @playlist.save
     end
 
+
     private
 
     def playlist_params
-      params.require(:playlist).permit(:name)
+      params.require(:playlist).permit :name
     end
   end
 end