patch 8.0.0306: mode() not sufficiently tested commit https://github.com/vim/vim/commit/e971df39a5aac5d9b7e8033247dc18b12daa0eb8 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Feb 5 14:15:29 2017 +0100 patch 8.0.0306: mode() not sufficiently tested Problem: mode() not sufficiently tested. Solution: Add more tests. (Yegappan Lakshmanan)

" 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