patch 8.1.1366: using expressions in a modeline is unsafe commit https://github.com/vim/vim/commit/110289e78195b6d01e1e6ad26ad450de476d41c1 Author: Bram Moolenaar <Bram@vim.org> Date: Thu May 23 15:38:06 2019 +0200 patch 8.1.1366: using expressions in a modeline is unsafe Problem: Using expressions in a modeline is unsafe. Solution: Disallow using expressions in a modeline, unless the 'modelineexpr' option is set. Update help, add more tests.

" Vim filetype plugin file
" Language:             pinfo(1) configuration file
" 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=:# commentstring=#\ %s formatoptions-=t formatoptions+=croql

let &cpo = s:cpo_save
unlet s:cpo_save