lib/active_support/testing/deprecation.rb in activesupport-5.1.7 vs lib/active_support/testing/deprecation.rb in activesupport-5.2.0.beta1

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 require "active_support/deprecation"
 require "active_support/core_ext/regexp"
 
 module ActiveSupport
   module Testing