Comment 1 for bug 2056225

If I install only maas-agent via `apt install maas-agent` then required folder is created

root@maas-deb:~# ls -al /run/maas
total 0
drwxr-xr-x 3 root root 60 Mar 5 21:39 .
drwxr-xr-x 29 root root 860 Mar 5 21:39 ..
drwxr-xr-x 2 maas maas 40 Mar 4 09:42 agent

However if I do `apt install maas` it seems that postinst script of maas-agent is not called.