it may stuck with console on readline 5.1 + CentOS 5
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42142 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
it may stuck with console on readline 5.1 + CentOS 5
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42142 b2dd03c8-39d4-4d8f-98ff-823fe69b080e