patch 8.1.1017: off-by-one error in filetype detection commit https://github.com/vim/vim/commit/493fbe4abee660d30b4f2aef87b754b0a720213c Author: Bram Moolenaar <Bram@vim.org> Date: Sun Mar 17 17:16:12 2019 +0100 patch 8.1.1017: off-by-one error in filetype detection Problem: Off-by-one error in filetype detection. Solution: Also check the last line of the file.

" Vim filetype plugin file
" Language:	hg (Mercurial) commit file
" Maintainer:	Ken Takata <kentkt at csc dot jp>
" Last Change:	2016 Jan 6
" Filenames:	hg-editor-*.txt
" License:	VIM License
" URL:		https://github.com/k-takata/hg-vim

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

setlocal nomodeline

let b:undo_ftplugin = 'setl modeline<'