Allow us to use `fit`, `fdescribe`, `:focus` etc.
Allow us to use `fit`, `fdescribe`, `:focus` etc.

I find it useful sometimes to just slap an `f` in front of `it` or
`describe` when I want to run just a few specs.

bquorning/rubocop-rspec,backus/rubocop-rspec,nevir/rubocop-rspec,backus/rubocop-rspec