When using virt-v2v-in-place there is no easy way to get the post-conversion metadata, such as the operating system and firmware that virt-v2v detected inside the guest. This commit adds new, optional '-O output.xml' to write this information out to a file. The format is identical to virt-v2v-inspector (and roughly a superset of virt-inspector). Fixes: https://issues.redhat.com/browse/RHEL-58032 Thanks: Martin Necas