commit https://github.com/vim/vim/commit/08b7bae91adb79d30d4c923fd758e2f7cecd33ef Author: Bram Moolenaar <Bram@vim.org> Date: Wed Dec 30 17:56:05 2015 +0100 patch 7.4.1004 Problem: Using Makefile when auto/config.mk does not exists results in warnings. Solution: Use default values for essential variables.

" Vim filetype plugin file
" Language:	BTM
" Maintainer:	Bram Moolenaar <Bram@vim.org>
" Last Change:	2004 Jul 06

" Only do this when not done yet for this buffer
if exists("b:did_ftplugin")
  finish
endif

" Behaves just like dosbatch
runtime! ftplugin/dosbatch.vim ftplugin/dosbatch_*.vim ftplugin/dosbatch/*.vim