d/libvirt-daemon-system.libvirtd.default: clarify libvirtd_opts example (Closes: #921713)
d/libvirt-daemon-system.libvirtd.default: clarify libvirtd_opts example
(Closes: #921713)

Signed-off-by: Christian Ehrhardt <48da28e2c2cd455d60e19b14c46925e20a3c5d5b@canonical.com>

agx/libvirt-debian,agx/libvirt-debian,agx/libvirt-debian,agx/libvirt-debian,agx/libvirt-debian