Merge pull request #12559 from MicrosoftDocs/Dean-Haas-patch-1

Update Start-ManagedFolderAssistant.md

Author: chrisda

exchange/exchange-ps/exchange/Start-ManagedFolderAssistant.md

@@ -184,7 +184,9 @@ Accept wildcard characters: False
 ```
 
 ### -AggMailboxCleanup
-The AggMailboxCleanup switch specifies a more aggressive processing cycle if items aren't moving as quickly as they should. You don't need to specify a value with this switch.
+The AggMailboxCleanup switch specifies aggregate mailbox cleanup. You don't need to specify a value with this switch.
+
+This switch cleans up aggregate mailboxes, audits, and calendar logging.
 
 ```yaml
 Type: SwitchParameter