git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15341 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* enc/euc_cn.c: remove CP936 and rename to gb2312.c * enc/gb2312.c: GB2312 is preferred MIME name. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15309 b2dd03c8-39d4-4d8f-98ff-823fe69b080e