require fileutils

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@9154 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activesupport/test/buffered_logger_test.rb

 require 'abstract_unit'
 require 'stringio'
+require 'fileutils'
 
 class BufferedLoggerTest < Test::Unit::TestCase
   def setup