Attached systemd service (put in /etc/systemd/system/dnsmasq.service) seems to work.
Keep in mind that it is not 1:1 replacement, it lacking features of original unit file.
[Unit] Description=A lightweight DHCP and caching DNS server After=network.target [Service] Type=simple ExecStartPre=/usr/sbin/dnsmasq --test ExecStart=/usr/sbin/dnsmasq -k --user=dnsmasq --group=nogroup ExecReload=/bin/kill -HUP $MAINPID [Install] WantedBy=multi-user.target
-- sg
