self_spec.rb in mongoid-compatibility-1.0.0

- old
+ new

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Mongoid::Compatibility do
   it 'has a version' do
     expect(Mongoid::Compatibility::VERSION).not_to be_nil