git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48007 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
https://github.com/duerst/eprun/blob/master/lib/normalize.rb. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48005 b2dd03c8-39d4-4d8f-98ff-823fe69b080e