test/checking/checks/test_mixed_content.rb in nanoc-4.7.9 vs test/checking/checks/test_mixed_content.rb in nanoc-4.7.10

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 require 'helper'
 
 class Nanoc::Checking::Checks::MixedContentTest < Nanoc::TestCase
   def create_output_file(name, lines)
     FileUtils.mkdir_p('output')