Rakefile in warden-1.2.7 vs Rakefile in warden-1.2.8

@@ -1,13 +1,8 @@
 # -*- encoding: utf-8 -*-
 # frozen_string_literal: true
-require 'rubygems'
-require 'rake'
-$:.unshift  File.join(File.dirname(__FILE__), "lib")
+require "bundler/gem_tasks"
+require "rspec/core/rake_task"
 
-require 'rspec/core'
-require 'rspec/core/rake_task'
+RSpec::Core::RakeTask.new(:spec)
 
 task :default => :spec
-
-desc "Run all specs in spec directory"
-RSpec::Core::RakeTask.new(:spec)