patch 8.2.3021: spaces allowed between option name and "!", "?", etc. Commit: https://github.com/vim/vim/commit/208f0b48b2c616b29f377a1408290111ed2663f7 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jun 20 12:40:08 2021 +0200 patch 8.2.3021: spaces allowed between option name and "!", "?", etc. Problem: Spaces allowed between option name and "!", "?", etc. Solution: Disallow spaces in Vim9 script, it was not documented. (closes #8408)

#!/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