change password prompt

[Tony Baldwin <tonybaldwin@gmx.com>]

I had, on a prior machine, changed the password prompt for sudo by 
adding something (it was "ENTER NUCLEAR LAUNCH CODE:" in fact) to the 
sudoers file, but at the moment I can not recall what/how I did it, but 
I'd like to do it again.
Anyone?

TIA
Tony


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