Add an --iothread qualifier to domstats and an explanation in
the man page. Describe the values in as generic terms as possible
allowing each hypervisor to provide a specific algorithm to utilize
the values as it sees fit.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>
ACKed-by: NMichal Privoznik <mprivozn@redhat.com>