manual/table.rb in prawn-2.2.2 vs manual/table.rb in prawn-2.3.0

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 require_relative 'example_helper'
 
 filename = File.basename(__FILE__).gsub('.rb', '.pdf')
 
 Prawn::ManualBuilder::Example.generate(filename) do