shell linter check

Author: sireeshajonnalagadda

src/docker-in-docker/install.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-#shellcheck disable=all
+# shellcheck disable=all
 #-------------------------------------------------------------------------------------------------------------
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # Licensed under the MIT License. See https://go.microsoft.com/fwlink/?linkid=2090316 for license information.