git-multsig does that everytime it starts, or just:
addmultisigaddress 3 '["034b0bd0f653d4ac0a2e9e81eb1863bb8e5743f6cb1ea40d845b939c225a1a80ff",
"02a144af74d018501f03d76ead130433335f969772792ec39ce389c8a234155259",
"03661a4370dfcfbcea25d1800057220f4572b6eecab95bb0670e8676a9e34451dc",
"0234139729dd413c84a71a0bfd6f236790be861b37311cef3240277c940e4b0c07",
"02547427fc2ea3a0ab9ef70f5e1640ff5112b113f65696948f992bd0770b942571"]'