Merge pull request MicrosoftDocs#3927 from dariomws306/patch-40

Update Set-User.md

Author: chrisda

exchange/exchange-ps/exchange/users-and-groups/Set-User.md

@@ -1070,7 +1070,7 @@ Accept wildcard characters: False
 ```
 
 ### -WhatIf
-The WhatIf switch simulates the actions of the command. You can use this switch to view the changes that would occur without actually applying those changes. You don't need to specify a value with this switch.
+The WhatIf switch doesn’t work on this cmdlet.
 
 ```yaml
 Type: SwitchParameter