enable ruby_w32_codepage on cygwin
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58737 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
enable ruby_w32_codepage on cygwin
[ruby-core:81163] [Bug #13567]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58737 b2dd03c8-39d4-4d8f-98ff-823fe69b080e