broker: fix padding of metadata blocks
broker: fix padding of metadata blocks

The metadata blocks were being padded and thrown away instead of
assigned, which could cause garbage in the metadata on disk.

Change-Id: Ifc4cfac8bbe9da4fcc72872828bbf84b752e1551
Signed-off-by: Greg Padgett <3af508f6206cdc15d61fd615066fc83e4b020700@redhat.com>

oVirt/ovirt-hosted-engine-ha,oVirt/ovirt-hosted-engine-ha,oVirt/ovirt-hosted-engine-ha,oVirt/ovirt-hosted-engine-ha