patch 8.1.0377: xdiff doesn't use the Vim memory allocation functions commit https://github.com/vim/vim/commit/42335f50bc6fac444a8af74c81df8369d722a6fb Author: Bram Moolenaar <Bram@vim.org> Date: Thu Sep 13 15:33:43 2018 +0200 patch 8.1.0377: xdiff doesn't use the Vim memory allocation functions Problem: Xdiff doesn't use the Vim memory allocation functions. Solution: Change the xdl_ defines. Check for out-of-memory. Rename "ignored" to "vim_ignored".

" VIM syntax file
" Language:	groff
" Maintainer:	Alejandro López-Valencia <dradul@yahoo.com>
" URL:		http://dradul.tripod.com/vim
" Last Change:	2003-05-08-12:41:13 GMT-5.

" This uses the nroff.vim syntax file.
let b:main_syntax = "nroff"
let b:nroff_is_groff = 1
runtime! syntax/nroff.vim