sshd fails to start because missing /var/run/sshd dir (ubuntu)

gistfile1.txt

vim /usr/lib/tmpfiles.d/sshd.conf
# remove the "/var"
d /run/sshd 0755 root root
systemd-tmpfiles --create

now the dir will be created at boot and ssh will show up

-------
https://serverfault.com/questions/941855/why-am-i-missing-var-run-sshd-after-every-boot
-------
So /run (and /var/run symlinked to it) gets recreated every reboot. Except that systemd-tmpfiles isn't doing that for some files including (/var)/run/sshd.
Apparently, this is fixed by a OpenVZ kernel upgrade. But to actually fix it now you edit /usr/lib/tmpfiles.d/sshd.conf and remove /var from the line d /var/run/sshd 0755 root root to read instead: 
d /run/sshd 0755 root root
And that's it..!
And when openssh-server gets upgraded, we hope that they will have fixed this bug (or is it really a bug in systemd? or openvz??) -- otherwise you could run into the same problem.