fix for test_neutorn_gre
fix for test_neutorn_gre

Change-Id: Id7d637cc6b8706319f7e32da6ebae0c4365c3ffe

ddepaoli3/fuel-main-dev,Fiware/ops.Fuel-main-dev,stackforge/fuel-main,AnselZhangGit/fuel-main,zhaochao/fuel-main,AnselZhangGit/fuel-main,Fiware/ops.Fuel-main-dev,Fiware/ops.Fuel-main-dev,SergK/fuel-main,SergK/fuel-main,ddepaoli3/fuel-main-dev,dancn/fuel-main-dev,Fiware/ops.Fuel-main-dev,dancn/fuel-main-dev,eayunstack/fuel-main,SergK/fuel-main,zhaochao/fuel-main,teselkin/fuel-main,huntxu/fuel-main,teselkin/fuel-main,AnselZhangGit/fuel-main,teselkin/fuel-main,huntxu/fuel-main,zhaochao/fuel-main,AnselZhangGit/fuel-main,SmartInfrastructures/fuel-main-dev,dancn/fuel-main-dev,eayunstack/fuel-main,dancn/fuel-main-dev,huntxu/fuel-main,SmartInfrastructures/fuel-main-dev,ddepaoli3/fuel-main-dev,ddepaoli3/fuel-main-dev,stackforge/fuel-main,SmartInfrastructures/fuel-main-dev,SmartInfrastructures/fuel-main-dev,eayunstack/fuel-main,stackforge/fuel-main,teselkin/fuel-main,zhaochao/fuel-main,zhaochao/fuel-main