Fix the mocks.py for 2.0 unittests
Fix the mocks.py for 2.0 unittests

The recent change to use LogWarning with multiple arguments in
mpcu.py/HooksMaster broke the (simple) mock we have in the tests.

Signed-off-by: Iustin Pop <acf83a5274f31a43af6b914614365999469c1a31@google.com>
Reviewed-by: Michael Hanselmann <68b67885ff74281219b4a4be33cc20fd45078d7c@google.com>

dimara/ganeti,onponomarev/ganeti,apyrgio/ganeti,mbakke/ganeti,leshchevds/ganeti,andir/ganeti,ganeti/ganeti,onponomarev/ganeti,andir/ganeti,andir/ganeti,leshchevds/ganeti,mbakke/ganeti,ganeti/ganeti,ganeti/ganeti,mbakke/ganeti,ganeti-github-testing/ganeti-test-1,dimara/ganeti,bitemyapp/ganeti,leshchevds/ganeti,apyrgio/ganeti,ganeti-github-testing/ganeti-test-1,yiannist/ganeti,yiannist/ganeti,apyrgio/snf-ganeti,yiannist/ganeti,bitemyapp/ganeti,apyrgio/snf-ganeti,grnet/snf-ganeti,grnet/snf-ganeti