patch 8.1.1203: some autocmd tests are old style commit https://github.com/vim/vim/commit/69ea587289b03e23a9fb96adffd6e8173cbc5896 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Apr 25 20:29:00 2019 +0200 patch 8.1.1203: some autocmd tests are old style Problem: Some autocmd tests are old style. Solution: Turn the tests into new style. (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/4295)

" Vim filetype plugin
" Language:	Dockerfile
" Maintainer:   Honza Pokorny <http://honza.ca>
" Last Change:	2014 Aug 29

" Only do this when not done yet for this buffer
if exists("b:did_ftplugin")
  finish
endif

" Don't load another plugin for this buffer
let b:did_ftplugin = 1

let b:undo_ftplugin = "setl commentstring<"

setlocal commentstring=#\ %s