Update Start-AzureRmRecoveryServicesAsrTestFailoverCleanupJob.md

The example 2 "Clean up Test Failover using Recovery Plan" code is incorrect. I tested this on my lab and confirmed that correct syntax should be  < Start-AzureRmRecoveryServicesAsrTestFailoverCleanupJob -RecoveryPlan $recoveryPlan -Comment "testing done" >.

Please, update the documentation accordingly.

Author: maorteg

src/ResourceManager/RecoveryServices/Commands.RecoveryServices.SiteRecovery/help/Start-AzureRmRecoveryServicesAsrTestFailoverCleanupJob.md

@@ -44,7 +44,7 @@ Job to track test failover Cleanup of an Azure Site Recovery replication protect
 
 ### Example 2
 ```
-PS C:\> Start-AzureRmRecoveryServicesAsrTestFailoverCleanupJob -ReplicationProtectedItem $recoveryPlan -Comments "testing done"
+PS C:\> Start-AzureRmRecoveryServicesAsrTestFailoverCleanupJob -RecoveryPlan $recoveryPlan -Comment "testing done"
 ```
 
 Job to track test failover Cleanup of an Azure Site Recovery recoveryPlan.