Remove GNUism.
Remove GNUism.

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