deprecation warnings with return

[charly]

Hi,
I'm on rspec2 beta and I get the annoying warnings of deprecation with the return method.
I'd suggest you use tap instead : ([]).tap do |sentences| etc
and thanks for the gem !

[kylejginavan]

here is the pull request from the other gem. i switched to it for now. would love for this commit to find its way here.

btelles/faker#1