Rakefile in docparser-0.2.3 vs Rakefile in docparser-0.3.0

@@ -1,5 +1,7 @@
+# frozen_string_literal: true
+
 require 'bundler/gem_tasks'
 require 'rake/testtask'
 require 'rubocop'
 require 'yard'
 YARD::Rake::YardocTask.new
@@ -14,9 +16,9 @@
 
 task :rubocop do
   puts "Running Rubocop #{RuboCop::Version::STRING}"
   args = FileList['**/*.rb', 'Rakefile', 'docparser.gemspec', 'Gemfile']
   cli = RuboCop::CLI.new
-  fail unless cli.run(args) == 0
+  raise unless cli.run(args).zero?
 end
 
 task default: :test