fix ms.author

Author: duongau

articles/cdn/cdn-manage-expiration-of-blob-content.md

@@ -4,15 +4,15 @@ titleSuffix: Azure Content Delivery Network
 description: Learn about the options for controlling time-to-live for blobs in Azure CDN caching.
 services: cdn 
 author: duongau
-manager: kumud
+manager: kumudd
 ms.assetid: ad4801e9-d09a-49bf-b35c-efdc4e6034e8
 ms.service: azure-cdn
 ms.workload: media
 ms.tgt_pltfrm: na
 ms.devlang: csharp
 ms.topic: how-to
 ms.date: 02/27/2023
-ms.author: duongau
+ms.author: duau
 ms.custom: devx-track-azurepowershell
 
 ---