Gemfile in rubocop-sensible-0.2.0 vs Gemfile in rubocop-sensible-0.3.0

@@ -1,2 +1,4 @@
-source "https://rubygems.org"
+# frozen_string_literal: true
+
+source 'https://rubygems.org'
 
 # Specify your gem's dependencies in rubocop-sensible.gemspec