Fix typo in compare_buffered_updates.
Fix typo in compare_buffered_updates.

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