railsmaster.gemfile in abstract_notifier-0.1.1

- old
+ new

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 source "https://rubygems.org"
 
 gem "rails", github: "rails/rails"
 gem "rubocop", github: "rubocop-hq/rubocop"
 