patch 8.1.1195: Vim script debugger functionality needs cleanup commit https://github.com/vim/vim/commit/eead75c5e8e1f965548c55ee3a9388b2cb3afc36 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Apr 21 11:35:00 2019 +0200 patch 8.1.1195: Vim script debugger functionality needs cleanup Problem: Vim script debugger functionality needs cleanup. Solution: Move debugger code to a separate file. Add more tests. (Yegappan Lakshmanan, closes #4285)

" 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