Rakefile in sanitize_email-2.0.0 vs Rakefile in sanitize_email-2.0.1

@@ -1,50 +1,52 @@
-# encoding: utf-8
-#!/usr/bin/env rake
-require "rubygems"
-require "bundler/setup"
-require "bundler/gem_tasks"
-require "rake"
 
+# frozen_string_literal: true
+
+# !/usr/bin/env rake
+require 'rubygems'
+require 'bundler/setup'
+require 'bundler/gem_tasks'
+require 'rake'
+
 begin
-  require "wwtd/tasks"
-  require "rspec/core/rake_task"
+  require 'wwtd/tasks'
+  require 'rspec/core/rake_task'
   RSpec::Core::RakeTask.new(:spec)
   task :default => :spec
   task :test => :spec
 rescue LoadError
-  warn "Failed to load rspec or wwtd"
+  warn 'Failed to load rspec or wwtd'
 end
 
 begin
-  require "reek/rake/task"
+  require 'reek/rake/task'
   Reek::Rake::Task.new do |t|
     t.fail_on_error = true
     t.verbose = false
-    t.source_files = "lib/**/*.rb"
+    t.source_files = 'lib/**/*.rb'
   end
 rescue LoadError
-  warn "Failed to load reek"
+  warn 'Failed to load reek'
 end
 
 begin
-  require "roodi"
-  require "roodi_task"
+  require 'roodi'
+  require 'roodi_task'
   RoodiTask.new do |t|
     t.verbose = false
   end
 rescue LoadError
-  warn "Failed to load roodi"
+  warn 'Failed to load roodi'
 end
 
-require File.expand_path("../lib/sanitize_email/version", __FILE__)
-require "rdoc"
-require "rdoc/task"
+require File.expand_path('lib/sanitize_email/version', __dir__)
+require 'rdoc'
+require 'rdoc/task'
 RDoc::Task.new do |rdoc|
-  rdoc.rdoc_dir = "rdoc"
+  rdoc.rdoc_dir = 'rdoc'
   rdoc.title    = "SanitizeEmail #{SanitizeEmail::VERSION}"
-  rdoc.options << "--line-numbers"
-  rdoc.rdoc_files.include("README*")
-  rdoc.rdoc_files.include("lib/**/*.rb")
+  rdoc.options << '--line-numbers'
+  rdoc.rdoc_files.include('README*')
+  rdoc.rdoc_files.include('lib/**/*.rb')
 end
 
 Bundler::GemHelper.install_tasks