Ruby

merges r25081 from trunk into ruby_1_9_1.
fixes [ruby-core:27694], reported by Denis Defreyne.¶

• hash.c (Hash#each): Fix documentation to reflect insertion order. A patch by Run Paint Run Run [ruby-core:23644] and [ruby-core:21231]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@27595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e