##############
config['hostgroups'].each_pair{ |name, hg|
next if hg['private']
+ throw "Empty hostgroup #{name}" if hg['_memberlist'].length == 0
set_complain_if_set hg, 'hostgroup_name', name , 'Hostgroup', name
set_complain_if_set hg, 'members' , hg['_memberlist'].join(","), 'Hostgroup', name