Remove 'sed' from command to retrieve fingerprint on Win

Author: kgremban

articles/iot-edge/how-to-create-test-certificates.md

@@ -4,7 +4,7 @@ description: Create test certificates and learn how to install them on an Azure
 author: kgremban
 manager: philmea
 ms.author: kgremban
-ms.date: 04/14/2020
+ms.date: 04/23/2020
 ms.topic: conceptual
 ms.service: iot-edge
 services: iot-edge
@@ -308,7 +308,7 @@ Your IoT device also needs a copy of its device certificates so that it can auth
 3. Retrieve the SHA1 fingerprint (called a thumbprint in IoT Hub contexts) from each certificate. The fingerprint is a 40 hexadecimal character string. Use the following openssl command to view the certificate and find the fingerprint:
 
    ```PowerShell
-   openssl x509 -in <WRKDIR>\certs\iot-device-<device name>-primary.cert.pem -text -fingerprint | sed 's/[:]//g'
+   openssl x509 -in <WRKDIR>\certs\iot-device-<device name>-primary.cert.pem -text -fingerprint
    ```
 
    Run this command twice, once for the primary certificate and once for the secondary certificate. You provide fingerprints for both certificates when you register a new IoT device using self-signed X.509 certificates.