[libvirt] [PATCH] qemu: Advertise <qcow2discard/> in capabilities if discard works for qcow2 backing files.

[Richard W.M. Jones]

Please disregard this patch.  Dan pointed out that it is possible to
read the hypervisor version using virConnectGetVersion.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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