patch 8.2.3394: filler lines are wrong when changing text in diff mode Commit: https://github.com/vim/vim/commit/04626c243c47af91c2580eaf23e12286180e0e81 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Sep 1 16:02:07 2021 +0200 patch 8.2.3394: filler lines are wrong when changing text in diff mode Problem: Filler lines are wrong when changing text in diff mode. Solution: Don't change the filler lines on every change. Check scrollbinding when updating the filler lines. (closes #8809)

#!/bin/bash
set -e

apt-get install -y xvfb

cat <<EOT >/etc/systemd/system/xvfb.service
[Unit]
Description=X Virtual Frame Buffer Service
After=network.target
[Service]
ExecStart=/usr/bin/Xvfb :99 -screen 0 1024x768x24
[Install]
WantedBy=multi-user.target
EOT

systemctl enable xvfb.service
systemctl start xvfb.service