boot.rb in extr-1.0.5

- old
+ new

@@ -1,11 +1,6 @@
 require 'rubygems'
 
-gemfile = File.expand_path('../../../../Gemfile', __FILE__)
+# Set up gems listed in the Gemfile.
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
 
-if File.exist?(gemfile)
-  ENV['BUNDLE_GEMFILE'] = gemfile
-  require 'bundler'
-  Bundler.setup
-end
-$:.unshift File.expand_path('../../../../lib', __FILE__)
-
+require 'bundler/setup' if File.exists?(ENV['BUNDLE_GEMFILE'])