network-location filter - don't check empty subnet and sg lists (#2506)
network-location filter - don't check empty subnet and sg lists (#2506)



Sutto/cloud-custodian,taohungyang/cloud-custodian,alfredgamulo/cloud-custodian,kapilt/cloud-custodian,ewbankkit/cloud-custodian,capitalone/cloud-custodian,Sutto/cloud-custodian,Sutto/cloud-custodian,FireballDWF/cloud-custodian,taohungyang/cloud-custodian,thisisshi/cloud-custodian,FireballDWF/cloud-custodian,ocampocj/cloud-custodian,capitalone/cloud-custodian,Sutto/cloud-custodian,thisisshi/cloud-custodian,alfredgamulo/cloud-custodian,capitalone/cloud-custodian,taohungyang/cloud-custodian,ocampocj/cloud-custodian,FireballDWF/cloud-custodian,kapilt/cloud-custodian,taohungyang/cloud-custodian,ewbankkit/cloud-custodian,capitalone/cloud-custodian,ewbankkit/cloud-custodian,FireballDWF/cloud-custodian,ocampocj/cloud-custodian,thisisshi/cloud-custodian,kapilt/cloud-custodian,ocampocj/cloud-custodian,ewbankkit/cloud-custodian,alfredgamulo/cloud-custodian,kapilt/cloud-custodian