B #2013: Make sure exit_group is called
B #2013: Make sure exit_group is called

atodorov-storpool/one,baby-gnu/one,atodorov-storpool/one,baby-gnu/one,OpenNebula/one,OpenNebula/one,baby-gnu/one,OpenNebula/one,atodorov-storpool/one,atodorov-storpool/one,OpenNebula/one,baby-gnu/one,OpenNebula/one,baby-gnu/one,OpenNebula/one,baby-gnu/one,atodorov-storpool/one,atodorov-storpool/one,atodorov-storpool/one,atodorov-storpool/one,atodorov-storpool/one,baby-gnu/one,OpenNebula/one,OpenNebula/one,baby-gnu/one,OpenNebula/one