* Multiple hw addresses can be set by providing multiple --hwaddr arguments
  or giving a comma separated list of hw addresses
* In the same way bonding devices can be set with --bonddevs
* Bonding mode can be set with --bondmode

Example:
  wwsh node set node1 --netdev bond0 \
    --hwaddr aa:bb:cc:dd:ee:01,aa:bb:cc:dd:ee:02 \
    --bonddevs eth0,eth1 \
    --bondmode 802.3ad

Changed interfaces:

* Warewulf::Node::update_netdev_member()

  Changed order of 'validator' and 'new_values' parameters
  new_values can now be a list

  The function is not used anywhere else.
  This is now consistent with the order that is also used in Object::prop().