patch 8.1.0993: ch_read() may return garbage if terminating NL is missing commit https://github.com/vim/vim/commit/772153f8d85c83e08427d93460a676d7f079f002 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Mar 4 12:09:49 2019 +0100 patch 8.1.0993: ch_read() may return garbage if terminating NL is missing Problem: ch_read() may return garbage if terminating NL is missing. Solution: Add terminating NUL. (Ozaki Kiichi, closes https://github.com/vim/vim/issues/4065)

" 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