patch 8.1.2416: loading menus sets v:errmsg Commit: https://github.com/vim/vim/commit/e24c5b3332b453175e5f73423884087a4aef1247 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Dec 10 22:11:53 2019 +0100 patch 8.1.2416: loading menus sets v:errmsg Problem: Loading menus sets v:errmsg. Solution: Avoid setting v:errmsg and add a test for that. (Jason Franklin)

" Vim indent file
" Language:      BibTeX
" Maintainer:    Dorai Sitaram <ds26@gte.com>
" URL:		 http://www.ccs.neu.edu/~dorai/vimplugins/vimplugins.html
" Last Change:   2005 Mar 28

" Only do this when not done yet for this buffer
if exists("b:did_indent")
  finish
endif
let b:did_indent = 1

setlocal cindent

let b:undo_indent = "setl cin<"