encoding for inspect
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52323 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
encoding for inspect
depend on the default external encoding. [Feature #10881]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52323 b2dd03c8-39d4-4d8f-98ff-823fe69b080e