outlines.rb in prawn-0.11.1

- old
+ new

@@ -1,10 +1,11 @@
 # encoding: utf-8
 #
 # This example demonstrates the use of the the outlines option for a new document
 # it sets an initial outline item with a title
 #
-require "#{File.dirname(__FILE__)}/../example_helper.rb"
+require File.expand_path(File.join(File.dirname(__FILE__),
+                                   %w[.. example_helper]))
 
 Prawn::Document.generate('outlines.pdf') do
   text "Page 1. This is the first Chapter. "
   start_new_page
   text "Page 2. More in the first Chapter. "