preserve_spec.rb in faml-0.6.1

- old
+ new

@@ -1,4 +1,5 @@
+# frozen-string-literal: true
 require 'spec_helper'
 
 RSpec.describe 'Preserve rendering', type: :render do
   it 'parses preserved script' do
     expect(render_string('~ "<p>hello\nworld</p>"')).to eq("&lt;p&gt;hello\nworld&lt;/p&gt;\n")