Fix not update service pack when become empty (idem for openrating system and version). closes #726
Fix not update service pack when become empty (idem for openrating system and version). closes #726

orthagh/fusioninventory-for-glpi,itinside/fusioninventory-for-glpi,itinside/fusioninventory-for-glpi,mohierf/fusioninventory-for-glpi,TECLIB/fusioninventory-for-glpi,dethegeek/fusioninventory-for-glpi,mohierf/fusioninventory-for-glpi,fusioninventory/fusioninventory-for-glpi,orthagh/fusioninventory-for-glpi,fusioninventory/fusioninventory-for-glpi,dethegeek/fusioninventory-for-glpi,orthagh/fusioninventory-for-glpi,itinside/fusioninventory-for-glpi,dethegeek/fusioninventory-for-glpi,TECLIB/fusioninventory-for-glpi,mohierf/fusioninventory-for-glpi,TECLIB/fusioninventory-for-glpi,fusioninventory/fusioninventory-for-glpi,TECLIB/fusioninventory-for-glpi,mohierf/fusioninventory-for-glpi,itinside/fusioninventory-for-glpi,fusioninventory/fusioninventory-for-glpi,mohierf/fusioninventory-for-glpi,dethegeek/fusioninventory-for-glpi,mohierf/fusioninventory-for-glpi,fusioninventory/fusioninventory-for-glpi,orthagh/fusioninventory-for-glpi,TECLIB/fusioninventory-for-glpi,fusioninventory/fusioninventory-for-glpi,orthagh/fusioninventory-for-glpi,TECLIB/fusioninventory-for-glpi,itinside/fusioninventory-for-glpi