* hash.c (rb_hash_update): Revert documentation from r38672
  See: https://github.com/ruby/ruby/pull/228#issuecomment-11791013


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38674 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/zlib/zlib.c (Zlib::GzipFile): Fix typo by zed_0xff
  [Fixes Github #229]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38675 b2dd03c8-39d4-4d8f-98ff-823fe69b080e