twbs/bootstrap — pull request #14564 by mdo (2014-09-08 17:58:35+00:00)
Title: Fixes #14557: .form-group margin in .navbar-form

Reset the bottom margin on `.form-group:last-child` in `.navbar-form` to prevent extra spacing. Fixed example in http://jsbin.com/zorije/1/. It appears we added the margin way back in 8bb7def2.