commit https://github.com/vim/vim/commit/2fc83fcd1d6dfd4728a2ef70e2316f79203c7ee0 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Feb 8 22:57:24 2016 +0100 patch 7.4.1292 Problem: Some compilers complain about uninitialzed variable, even though all possible cases are handled. (Dominique Pelle) Solution: Add a default initialization.

" 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