emove the Signed-off-by line which was added by <code>-s</code> above.</p>
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<pre>psuh: add a built-in by popular demand

Internal metrics indicate this is a command many users expect to be
present. So here's an implementation to help drive customer
satisfaction and engagement: a pony which doubtfully greets the user,
or, a Pony Saying "Um, Hello" (PSUH).

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