Fuubar style formatter

[bbatsov]

Maybe it will make sense to add a fuubar style formatter as well, since it's fairly popular with rspec users.

@yujinakayama What do yo think?

[lee-dohm]

👍 I use fuubar in all my RSpec tested projects. This would be a welcome addition for RuboCop.

[yujinakayama]

That's a pretty good idea. :)

@bbatsov Are you going to implement it? Or should I do?

[bbatsov]

@yujinakayama I'd rather you do it, as I'm currently working on a few new lint checks.

[yujinakayama]

@bbatsov 👍 OK.