patch 9.0.1494: crash when recovering from corrupted swap file Commit: https://github.com/vim/vim/commit/bf1b7132021bac0fccefebb4a1c24a5f372bae4f Author: Bram Moolenaar <Bram@vim.org> Date: Thu Apr 27 21:13:12 2023 +0100 patch 9.0.1494: crash when recovering from corrupted swap file Problem: Crash when recovering from corrupted swap file. Solution: Bail out when the line index looks wrong. (closes https://github.com/vim/vim/issues/12276)

" Vim filetype plugin file
" Language:             Treetop
" Previous Maintainer:  Nikolai Weibull <now@bitwi.se>
" Latest Revision:      2011-03-14

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

let s:cpo_save = &cpo
set cpo&vim

setlocal comments=b:# commentstring=#\ %s formatoptions-=tcroq formatoptions+=l

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

let &cpo = s:cpo_save
unlet s:cpo_save