Rakefile in aw-0.1.1 vs Rakefile in aw-0.1.2

@@ -1,5 +1,7 @@
+# frozen_string_literal: true
+
 require 'bundler/gem_tasks'
 require 'rake/testtask'
 require 'rubocop/rake_task'
 
 RuboCop::RakeTask.new
@@ -15,6 +17,6 @@
     Rake::Task['test'].invoke
   end
 end
 
 task(:doc_stats) { ruby '-S yard stats' }
-task default: %i[test doc_stats]
+task default: %i[test doc_stats rubocop]