commit https://github.com/vim/vim/commit/c4bc0e6542185b659d2a165b635f9561549071ea Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jun 2 13:54:49 2016 +0200 patch 7.4.1872 Problem: Still build problem with old version of Perl. Solution: Also define SvREFCNT_inc_void_NN if needed. (Ken Takata)

start of test file Xxx
vim: set noai :
	this is a test
	this is a test
	this is a test
	this is a test
this is some more text
end of test file Xxx
this is another test line