dom0/qvm-dom0-update: do not use GUI when called from cmdline

dom0/qvm-tools/qvm-dom0-update

@@ -26,7 +26,7 @@ echo "Checking for dom0 updates"
 # Start VM if not running already
 qvm-run -a $UPDATEVM true || exit 1
 /usr/lib/qubes/sync_rpmdb_updatevm.sh || exit 1
-qvm-run --pass_io $UPDATEVM "/usr/lib/qubes/qubes_download_dom0_updates.sh $*" || exit 1
+qvm-run --pass_io $UPDATEVM "/usr/lib/qubes/qubes_download_dom0_updates.sh --doit --nogui $*" || exit 1
 # Wait for download completed
 while pidof -x qubes-receive-updates >/dev/null; do sleep 0.5; done
 if [ $# -gt 0 ]; then