* lib/rake: Update to Rake 0.9.2.2. Prevent pollution of toplevel

namespace by Commands.  Remove unused variable and debugging
  statement in tests.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@32944 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rake/application.rb

@@ -348,6 +348,7 @@ module Rake
         ],
         ['--rakelibdir', '--rakelib', '-R RAKELIBDIR',
           "Auto-import any .rake files in RAKELIBDIR. (default is 'rakelib')",
+          # HACK Use File::PATH_SEPARATOR
           lambda { |value| options.rakelib = value.split(':') }
         ],
         ['--require', '-r MODULE', "Require MODULE before executing rakefile.",