Don't require fileutils in exec.rb
Don't require fileutils in exec.rb

Fileutils was only used in --rails option, removed in
c3cdc567b1686a314fe6decfee4fe6bd8c50e3a7.

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