patch 8.2.4272: Vim9 expr test fails without the channel feature Commit: https://github.com/vim/vim/commit/eb6c2765959c91ddbb527f96f91ba5be199b8d41 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jan 31 13:36:36 2022 +0000 patch 8.2.4272: Vim9 expr test fails without the channel feature Problem: Vim9 expr test fails without the channel feature. (Dominique Pell?) Solution: Remove "g:" before "CheckFeature". (closes #9671)

#!/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