Ruby » Ruby master

merge revision(s) 34712:

    * enumerator.c (enumerator_rewind): update the documentation.
      fixed: #6053

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@34713 b2dd03c8-39d4-4d8f-98ff-823fe69b080e