message: input-file expects an array for IoT Central
diff: @@ -30,10 +30,12 @@ tag: package-2019-10-28-preview
  These settings apply only when `--tag=package-2019-10-28-preview` is specified on the command line.
  ```yaml $(package-2019-10-28-preview-global)
  -input-file: Microsoft.IoTCentral/preview/2019-10-28-preview/iotcentralapps.json
  +input-file:
  + - Microsoft.IoTCentral/preview/2019-10-28-preview/iotcentralapps.json
  ```
  ```yaml $(package-2019-10-28-preview-app)
  -input-file: Microsoft.IoTCentral/preview/2019-10-28-preview/iotcentral.json
  +input-file:
  + - Microsoft.IoTCentral/preview/2019-10-28-preview/iotcentral.json
  ```
  ```yaml
  