[libvirt] Update libvirt API and refs XML files

[Chris Lalancette]

Matthias Bolte wrote:
> Commit 47c8709564ac3f2ec5b4a3830ac213e69b4a44d5 "Fix up a few typos in
> the tree" triggered changes in docs/libvirt-api.xml and
> docs/libvirt-refs.xml. The attached patch contains this changes.
> 
> The files docs/libvirt-api.xml and docs/libvirt-refs.xml are generated
> by apibuild.py, why are this generated files under version control?

Yeah, I've been running into this too.  I think we should remove those files
from version control, personally.

-- 
Chris Lalancette