lib/mws/cart_information/client.rb in peddler-0.10.0 vs lib/mws/cart_information/client.rb in peddler-0.11.0

@@ -26,10 +26,10 @@
       # @option opts [String] :marketplace_id
       # @option opts [String, #iso8601] :date_range_end
       # @return [Peddler::XMLParser]
       def list_carts(date_range_start, opts = {})
         operation('ListCarts')
-          .add(opts.merge('DateRangeStart' => date_range_start))
+          .add(opts.update('DateRangeStart' => date_range_start))
 
         run
       end
 
       # Lists the next page of shopping carts