patch 8.1.1707: Coverity warns for possibly using a NULL pointer commit https://github.com/vim/vim/commit/cfdbc5adde49cbab939e8164555ed0b8d9ce000b Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jul 17 21:27:52 2019 +0200 patch 8.1.1707: Coverity warns for possibly using a NULL pointer Problem: Coverity warns for possibly using a NULL pointer. Solution: Change the logic to make sure no NULL pointer is used.

" 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