merges r20908 from trunk into ruby_1_9_1.

* lib/rake.rb (Rake::MultiTask): invoke_prerequisites should be
  private.  a patch from okkez in [ruby-dev:37399]

git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_9_1@20997 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/rake.rb b/lib/rake.rb
index 63412b153..a0685b4ab 100755
--- a/lib/rake.rb
+++ b/lib/rake.rb
@@ -802,6 +802,7 @@ module Rake
   # parallel using Ruby threads.
   #
   class MultiTask < Task
+    private
     def invoke_prerequisites(args, invocation_chain)
       threads = @prerequisites.collect { |p|
         Thread.new(p) { |r| application[r].invoke_with_call_chain(args, invocation_chain) }