commit https://github.com/vim/vim/commit/680e015bfe19be6772d3bd754486fbd45c1a9d3b Author: Bram Moolenaar <Bram@vim.org> Date: Sun Sep 25 20:54:11 2016 +0200 patch 8.0.0010 Problem: Crash when editing file that starts with crypt yeader. (igor2x) Solution: Check for length of text. (Christian Brabandt) Add a test.

" Vim indent file
" Language:	generic Changelog file
" Maintainer:	noone
" Last Change:	2005 Mar 29

" Only load this indent file when no other was loaded.
if exists("b:did_indent")
   finish
endif
let b:did_indent = 1

setlocal ai

let b:undo_indent = "setl ai<"