Do document this...

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1207 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activesupport/lib/active_support/core_ext/kernel.rb

@@ -10,7 +10,7 @@ module Kernel
   #
   #   foo # => ['bar', 'baz']
   #
-  def returning(value) #:nodoc:
+  def returning(value)
     yield
     value
   end