BugFix: UPS return request address part address line for one line, multiple line return error on invalid request

Author: Kamil Wiśniowski

app/code/Magento/Ups/Model/Carrier.php

@@ -1421,7 +1421,7 @@ protected function _formShipmentRequest(DataObject $request)
             $shipperPart->addChild('PhoneNumber', $request->getRecipientContactPhoneNumber());
 
             $addressPart = $shipperPart->addChild('Address');
-            $addressPart->addChild('AddressLine1', $request->getRecipientAddressStreet());
+            $addressPart->addChild('AddressLine1', $request->getRecipientAddressStreet1());
             $addressPart->addChild('AddressLine2', $request->getRecipientAddressStreet2());
             $addressPart->addChild('City', $request->getRecipientAddressCity());
             $addressPart->addChild('CountryCode', $request->getRecipientAddressCountryCode());