patch 8.1.1294: MS-Windows: Some fonts return wrong average char width commit https://github.com/vim/vim/commit/93d77b2cbec08518ee426d0c44c50cf505732443 Author: Bram Moolenaar <Bram@vim.org> Date: Tue May 7 22:52:50 2019 +0200 patch 8.1.1294: MS-Windows: Some fonts return wrong average char width Problem: MS-Windows: Some fonts return wrong average char width. Solution: Compute the average ourselves. (Ken Takata, closes https://github.com/vim/vim/issues/4356)

" 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