[libvirt] [PATCH] libvirt: support block device storage type invirshParseSnapshotDiskspec

[liu.dayu at zte.com.cn]

> virsh has to be able to work remotely so this code will definitely not
> be acceptable here.
>
> I think we can only go with adding a "type" field for the diskspec
> string which will be either "file" or "block" and do this in that case.
> e.g.
> --diskspec vda,snapshot=external,driver=qcow2,type=block,file=/dev/whatever

thanks, i will reconsider adding a "type" field for --diskspec to amend this patch.