iotests/236: fix transaction kwarg order

It's not enough to order the kwargs for consistent QMP log output,
we must also sort any sub-dictionaries in lists that appear as values.

Reported-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 files changed