lib/rouge/formatters/null.rb in rouge-3.2.1 vs lib/rouge/formatters/null.rb in rouge-3.3.0

@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*- #
+# frozen_string_literal: true
 
 module Rouge
   module Formatters
     # A formatter which renders nothing.
     class Null < Formatter