patch 8.2.3419: a failing debug expression may make Vim unusable Commit: https://github.com/vim/vim/commit/0325d3967ce7d0fd35bc1472fd476b911b895b76 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Sep 9 12:34:19 2021 +0200 patch 8.2.3419: a failing debug expression may make Vim unusable Problem: A failing debug expression may make Vim unusable. Solution: Suppress error messages. (closes https://github.com/vim/vim/issues/8848)

" Vim indent file
" Language:	Mail
" Maintainer:	Bram Moolenaar
" Last Change:	2009 Jun 03

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

" What works best is auto-indenting, disable other indenting.
" For formatting see the ftplugin.
setlocal autoindent nosmartindent nocindent indentexpr=