Rakefile in xml-sitemap-1.2.2 vs Rakefile in xml-sitemap-1.3.0

@@ -1,5 +1,6 @@
 require 'bundler'
+require 'bundler/gem_tasks'
 require "rspec/core/rake_task"
 
 RSpec::Core::RakeTask.new(:test) do |t|
   t.pattern = 'spec/*_spec.rb'
   t.verbose = false
\ No newline at end of file