patch 8.1.0708: third argument for redrawWinline() is always FALSE commit https://github.com/vim/vim/commit/ae12f4bad306a1a3a2d54ff6ed76df9b11d19469 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jan 9 20:51:04 2019 +0100 patch 8.1.0708: third argument for redrawWinline() is always FALSE Problem: Third argument for redrawWinline() is always FALSE. Solution: Drop the argument. (neovim https://github.com/vim/vim/issues/9479)

" 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