-o option now broken in version 0.12.2-0ubuntu3

Hi,

python-vm-builder version 0.12.2-0ubuntu3 on Lucid, the -o option does not work any more. Using the following command (as root) I get an error:

sudo vmbuilder kvm ubuntu --suite=karmic --flavour=virtual --arch=amd64 --mirror=http://192.168.1.3:9999/ubuntu -o --libvirt=qemu:///system --tmpfs=- --ip=192.168.1.54 --part=vmbuilder.partition --templates=mytemplates --user=john --name=john --pass=john --addpkg=vim-nox --addpkg=unattended-upgrades --addpkg=acpid --raw=/dev/virtmachs/vm4 --firstboot=boot.sh --mem=256 --hostname=vm4 --bridge=br0
Usage: vmbuilder hypervisor distro [options]

vmbuilder: error: no such option: -o
Error! VM vm4 not created properly.

This used to work until recently.
Thanks,
John