patch 8.2.3831: opfunc test fails when missing feature changes function name Commit: https://github.com/vim/vim/commit/23e72369ffa2c18e9fda1e5d77f4397dc4700764 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Dec 16 21:07:35 2021 +0000 patch 8.2.3831: opfunc test fails when missing feature changes function name Problem: Opfunc test fails when missing feature changes function name. (Dominique Pell?) Solution: Check the relevant screen line instead of using a screendump. (closes #9360)

#!/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