spree/spree_paypal_express — pull request #73 by edslocomb (2012-07-16 18:22:25+00:00)
Title: Pass Spree SKU to Paypal Express API correctly

ActiveMerchant::PaypalExpressGateway does nothing with item[:sku], instead we should set the confusingly-named item[:number] from the underlying Paypal api: https://cms.paypal.com/us/cgi-bin/?cmd=_render-content&content_ID=developer/e_howto_api_ECCustomizing