options from --help. [ruby-dev:42690] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30121 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29832 b2dd03c8-39d4-4d8f-98ff-823fe69b080e