CP932 UDA. Another reason is emacs-mule: the implementation of stateless-iso-2022-jp doesn't support beyond 94x94 (0x7fxx); but CP932 UDA is in 7Fxx-92xx. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31366 b2dd03c8-39d4-4d8f-98ff-823fe69b080e