kaxmlrpc: fix ancient comment text

Change-Id: I7b49f5644932e4bdc5dcd312b14b413c5ea230eb
Signed-off-by: Dan Kenigsberg <danken@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/33621
Reviewed-by: Piotr Kliczewski <piotr.kliczewski@gmail.com>