Use variable not constant for Erb test
Use variable not constant for Erb test

Using uppercase name creates a constant, which can cause warnings as it
is redefined.

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