MAGETWO-44378: Customer Sign In Fail

Author: Maxim Medinskiy

app/code/Magento/Customer/Model/Checkout/ConfigProvider.php

@@ -3,7 +3,7 @@
  * Copyright © 2015 Magento. All rights reserved.
  * See COPYING.txt for license details.
  */
-namespace Magento\CUstomer\Model\Checkout;
+namespace Magento\Customer\Model\Checkout;
 
 use Magento\Checkout\Model\ConfigProviderInterface;
 use Magento\Customer\Model\Url;