patch 8.1.1331: test 29 is old style commit https://github.com/vim/vim/commit/fb222df28d5158516104a21cba7141a6240f4817 Author: Bram Moolenaar <Bram@vim.org> Date: Tue May 14 17:57:19 2019 +0200 patch 8.1.1331: test 29 is old style Problem: Test 29 is old style. Solution: Turn it into a new style test. (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/4370)

" 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