* misc/ruby-additional.el (ruby-mode-set-encoding): Add a missing
  else clause to unbreak with `cp932`, etc.

* misc/ruby-mode.el (ruby-mode-set-encoding): Ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43188 b2dd03c8-39d4-4d8f-98ff-823fe69b080e