cached.rb in jekyll-assets-2.0.0

- old
+ new

@@ -1,4 +1,8 @@
+# Frozen-string-literal: true
+# Copyright: 2012-2015 - MIT License
+# Encoding: utf-8
+
 module Jekyll
   module Assets
     class Cached < Sprockets::CachedEnvironment
       attr_reader :jekyll, :parent
       def initialize(env)