commit https://github.com/vim/vim/commit/827b165b2aebad2cfe98cc6d5804c6c0fe8afd89 Author: Bram Moolenaar <Bram@vim.org> Date: Thu May 5 18:14:03 2016 +0200 patch 7.4.1819 Problem: Compiler warnings when sprintf() is a macro. Solution: Don't interrupt sprintf() with an #ifdef. (Michael Jarvis, closes https://github.com/vim/vim/issues/788)

" Tests for :undo

func Test_ex_undo()
  new ex-undo
  setlocal ul=10
  exe "normal ione\n\<Esc>"
  setlocal ul=10
  exe "normal itwo\n\<Esc>"
  setlocal ul=10
  exe "normal ithree\n\<Esc>"
  call assert_equal(4, line('$'))
  undo
  call assert_equal(3, line('$'))
  undo 1
  call assert_equal(2, line('$'))
  undo 0
  call assert_equal(1, line('$'))
  quit!
endfunc