commit https://github.com/vim/vim/commit/451f849fd6282a4facd4f0f58af62837443fb5a6 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Apr 14 17:16:22 2016 +0200 patch 7.4.1735 Problem: It is not possible to only see part of the message history. It is not possible to clear messages. Solution: Add a count to ":messages" and a clear argument. (Yasuhiro Matsumoto)

" Vim filetype plugin file
" Language:	Diff
" Maintainer:	Bram Moolenaar <Bram@vim.org>
" Last Change:	2005 Jul 27

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

let b:undo_ftplugin = "setl modeline<"

" Don't use modelines in a diff, they apply to the diffed file
setlocal nomodeline