Set expectation according to Ruby version.
Set expectation according to Ruby version.

Small fix to patch in #493; on 1.8, `?,` is `44`, on 1.9 it's `,`.

haml/haml,haml/haml,nazar-pc/haml,keithpitty/haml,nazar-pc/haml,tangposmarvin/haml,haml/haml,dg1dd1ngs/haml,sideci-sample/sideci-sample-haml,stanhu/haml,tangposmarvin/haml,stanhu/haml,macressler/haml,amatsuda/haml,haml/haml,macressler/haml,dg1dd1ngs/haml,keithpitty/haml