patch 8.2.0077: settagstack() cannot truncate at current index Commit: https://github.com/vim/vim/commit/271fa08a35b8d320d3a40db4ddae83b698fdd4fb Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jan 2 14:02:16 2020 +0100 patch 8.2.0077: settagstack() cannot truncate at current index Problem: settagstack() cannot truncate at current index. Solution: Add the "t" action. (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/5417)

" 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