Bug#1040783: libvirt-daemon: libvirt firewalld zone is missing

[Niccolò Belli]

I've found the root of the problem: I was connecting to libvirt via ssh 
using an unprivileged user part of the libvirt group. That works for 
most of the tasks but not for creating the firewalld libvirt zone. Using 
root, while being less than ideal, works fine.