patch 8.2.0576: some errors are not covered by tests Commit: https://github.com/vim/vim/commit/067297e16a516838dbc46aaa9d8b1a507afec28d Author: Bram Moolenaar <Bram@vim.org> Date: Mon Apr 13 19:55:50 2020 +0200 patch 8.2.0576: some errors are not covered by tests Problem: Some errors are not covered by tests. Solution: Add a few more tests. (Dominique Pelle, closes https://github.com/vim/vim/issues/5920)

" 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