[MOD] intrastat: Ignore lines with a qty of less than 0
[MOD] intrastat: Ignore lines with a qty of less than 0

CatsAndDogsbvba/odoo,CatsAndDogsbvba/odoo,CatsAndDogsbvba/odoo,CatsAndDogsbvba/odoo,CatsAndDogsbvba/odoo,CatsAndDogsbvba/odoo,CatsAndDogsbvba/odoo