slex.rb: japanese comment [ci skip]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57291 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
slex.rb: japanese comment [ci skip]
ISO-2022-JP. [ruby-core:79017] [Misc #13117]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57291 b2dd03c8-39d4-4d8f-98ff-823fe69b080e