Comment # 9 on bug 987668 from James Fehlig

systemd-maintainers: libvirt recently switched to directly notifying systemd of
its readiness instead of using sd_notify

http://libvirt.org/git/?p=libvirt.git;a=commit;h=c0bc172383c2c955394589e5808457935ae06f1d

This works fine on SLE12 SP2, where we've noticed the presence of
/run/systemd/notify for $NOTIFY_SOCKET. But the file doesn't exist on SLE12
SP1, Leap 42.1, or 13.2, which all have systemd v210. Is directly notifying
systemd of service readiness via $NOTIFY_SOCKET supported on v210? Thanks.