Added "Add / update" comment. Update was missing.

gastondisacco · web-flow · commit b79e30ce732a · 2016-11-23T16:29:18.000-03:00
Should have the same description as in CartItemRepositoryInterface.php.
Currently only says add, but the API works for add and update too.
diff --git a/app/code/Magento/Quote/Api/GuestCartItemRepositoryInterface.php b/app/code/Magento/Quote/Api/GuestCartItemRepositoryInterface.php
@@ -21,7 +21,7 @@ interface GuestCartItemRepositoryInterface
     public function getList($cartId);
 
     /**
-     * Add the specified item to the specified cart.
+     * Add/update the specified cart item.
      *
      * @param \Magento\Quote\Api\Data\CartItemInterface $cartItem The item.
      * @return \Magento\Quote\Api\Data\CartItemInterface Item.

Original file line number	Diff line number	Diff line change
`@@ -21,7 +21,7 @@ interface GuestCartItemRepositoryInterface`
`21`	`21`	`public function getList($cartId);`
`22`	`22`
`23`	`23`	`/**`
`24`		`- * Add the specified item to the specified cart.`
	`24`	`+ * Add/update the specified cart item.`
`25`	`25`	`*`
`26`	`26`	`* @param \Magento\Quote\Api\Data\CartItemInterface $cartItem The item.`
`27`	`27`	`* @return \Magento\Quote\Api\Data\CartItemInterface Item.`