Merge remote-tracking branch 'remotes/ehabkost/tags/numa-pull-request' into staging

Merge remote-tracking branch 'remotes/ehabkost/tags/numa-pull-request' into staging

NUMA fixes, 2017-05-30

# gpg: Signature made Tue 30 May 2017 20:10:44 BST
# gpg:                using RSA key 0x2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <[email protected]>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/numa-pull-request:
  numa: Fix format string for "Invalid node" message
  numa-test: fix query-cpus leaks

Signed-off-by: Peter Maydell <[email protected]>