patch 8.1.0334: 'autowrite' takes effect when buffer is not to be written commit https://github.com/vim/vim/commit/8c9e7b00f6566dc41e794ef11c93d93b034c7134 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Aug 30 13:07:17 2018 +0200 patch 8.1.0334: 'autowrite' takes effect when buffer is not to be written Problem: 'autowrite' takes effect when buffer is not to be written. Solution: Don't write buffers that are not supposed to be written. (Even Q Jones, closes #3391) Add tests for 'autowrite'.

" Vim filetype plugin file
" Language:             Prolog
" Previous Maintainer:  Nikolai Weibull <now@bitwi.se>
" Latest Revision:      2008-07-09

if exists("b:did_ftplugin")
  finish
endif
let b:did_ftplugin = 1

let s:cpo_save = &cpo
set cpo&vim

let b:undo_ftplugin = "setl com< cms< fo<"

setlocal comments=s1:/*,mb:*,ex:*/,:% commentstring=%\ %s
setlocal formatoptions-=t formatoptions+=croql

let &cpo = s:cpo_save
unlet s:cpo_save