[SR-Users] Disable non-existent user warning

[Daniel Tryba]

On Tue, Mar 06, 2018 at 04:05:43PM +0100, Stefan R??etschli wrote:
> If I execute the command "serctl acl grant 1234 mygrant" I get a warning
> which I have to accept with "Y":
> Non-existent user '1234'. Still proceeding? [Y|N]
> 
> Is it possible to deactivate this warning? I know why this warning is there
> (it's not a user, it's an alias), so I think I know what I'm doing ;-)

This should work:
yes Y | serctl acl grant 1234 mygrant