Bug#769477: fixing upgrade

[Tomas Pospisek]

I have seen this problem while upgrading from wheezy to jessie.
I've worked around the problem by editing /etc/init.d/libvirtd, replacing 
the line

    # Provides:          libvirtd

with something else, like

    # Provides:          libvirtd-foobar

and rerunning `apt-get upgrade` or `apt-get dist-upgrade`.

Thanks,
*t