Merge pull request #209542 from ericd-mst-github/erd-vm-extensions-linux

added ms. custom tag

Author: prmerger-automator[bot]

articles/virtual-machines/extensions/custom-script-linux.md

@@ -5,6 +5,7 @@ ms.topic: article
 ms.service: virtual-machines
 ms.subservice: extensions
 ms.author: gabsta
+ms.custom: GGAL-freshness822
 author: MsGabsta
 ms.collection: linux
 ms.date: 04/25/2018