Tweak the default update interval.
Tweak the default update interval.

jech/babeld,Gwendocg/babeldToS,jech/babeld,Gwendocg/babeldToS,dtaht/babeld-shortrtt-metrics,boutier/babeld,tcatm/babeld,wlanslovenija/babeld,wlanslovenija/babeld,Drooids/babeld,sudomesh/babeld,woniullb/babeld