ecomba/vim-ruby-refactoring — pull request #42 by rking (2012-12-18 07:35:47+00:00)
Title: Parenless Style on Extract, via g:ruby_refactoring_sans_superfluous_syntax

If someone does:

let g:ruby_refactoring_sans_superfluous_syntax = 1

They will now get method extractions without parens (which, technically, aren't always superfluous, but people that prefer this style can cope with those cases)