[RFA 1/3] Add usage to printf command

[Simon Marchi]

On 2018-02-16 16:58, Tom Tromey wrote:
>>>>>> "Alan" == Alan Hayward <Alan.Hayward@arm.com> writes:
> 
> Alan> I like the addition of a “usage”. But this will be the only
> command to have it.
> 
> Plenty of commands have it.
> 
> Alan> Probably not in scope for this patch series, but it would be
> nice for consistency
> Alan> for usage statements to be added to all the commands in this 
> file.
> 
> I can drop this patch.

Please don't :).  I think this is a welcome change.

Simon