* array.c: Replace confusing example for #reverse_each in overview
  Patch by Earl St Sauver [Fixes documenting-ruby/ruby-12]
  https://github.com/documenting-ruby/ruby/pull/12


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41917 b2dd03c8-39d4-4d8f-98ff-823fe69b080e