patch 8.1.1775: error message may be empty in filetype test commit https://github.com/vim/vim/commit/eee9f65b2a213e9031f172d9d3b22adad6cb985d Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jul 29 21:14:42 2019 +0200 patch 8.1.1775: error message may be empty in filetype test Problem: Error message may be empty in filetype test. Solution: Use v:exception instead. (Daniel Hahler, closs https://github.com/vim/vim/issues/4744)

" Tests for saving/loading a file with some lines ending in
" CTRL-M, some not
func Test_lineending()
  let l = ["this line ends in a\<CR>",
	      \ "this one doesn't",
	      \ "this one does\<CR>",
	      \ "and the last one doesn't"]
  set ta tx
  enew!
  call append(0, l)
  $delete
  write Xfile1
  bwipe Xfile1
  edit Xfile1
  let t = getline(1, '$')
  call assert_equal(l, t)
  new | only
  call delete('Xfile1')
endfunc