Rakefile in killbill-avatax-2.0.0 vs Rakefile in killbill-avatax-2.1.0

@@ -1,5 +1,7 @@
+# frozen_string_literal: true
+
 begin
   require 'bundler/setup'
 rescue LoadError
   puts 'You must `gem install bundler` and `bundle install` to run rake tasks'
 end
@@ -12,26 +14,22 @@
   rdoc.options << '--line-numbers'
   rdoc.rdoc_files.include('README.rdoc')
   rdoc.rdoc_files.include('lib/**/*.rb')
 end
 
-APP_RAKEFILE = File.expand_path("../test/dummy/Rakefile", __FILE__)
+APP_RAKEFILE = File.expand_path('test/dummy/Rakefile', __dir__)
 load 'rails/tasks/engine.rake'
 
-
 load 'rails/tasks/statistics.rake'
 
-
-
 Bundler::GemHelper.install_tasks
 
 require 'rake/testtask'
 
 Rake::TestTask.new(:test) do |t|
   t.libs << 'lib'
   t.libs << 'test'
   t.pattern = 'test/**/*_test.rb'
   t.verbose = false
 end
-
 
 task default: :test