We try to keep the example programs independent of libraries
other than libvirt.
Rename the locally defined ARRAY_CARDINALITY macro to G_N_ELEMENTS
which GLib provides, even though we don't actually include GLib.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>