commit https://github.com/vim/vim/commit/b86a343280b08d6701da68ee0651e960a0a7a61c Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jan 10 16:00:53 2016 +0100 patch 7.4.1079 Problem: New include file missing from distribution. Missing changes to quickfix code. Solution: Add alloc.h to the list of distributed files. Use the enum in quickfix code.

" Vim filetype plugin
" Language:		JSON
" Maintainer:		David Barnett <daviebdawg+vim@gmail.com>
" Last Change:		2014 Jul 16

if exists('b:did_ftplugin')
  finish
endif
let b:did_ftplugin = 1

let b:undo_ftplugin = 'setlocal formatoptions< comments< commentstring<'

setlocal formatoptions-=t

" JSON has no comments.
setlocal comments=
setlocal commentstring=