[Toybox] [PATCH] find: add -printf support.

[Rob Landley]

On 5/26/19 11:12 AM, enh wrote:
>>> Anyway, this is enough for me get started building AOSP with toybox find.
>>
>> Let's see, does it...
>>
>>   find . -type f -printf '%.3s\n'
>>
>> Of course it does. And this is why I created next_printf().
> 
> huh. i did think about that, and though i didn't test (obviously), the
> docs explicitly said that the only modifiers supported were # with %m
> (which i couldn't find anyone using, and to which there's the easy
> workaround of saying `0%m` instead) and i took their word for it.

It's more a consistency thing. If we support "stat -c %.4b README" and
"printf %.4d 3" already, _not_ doing it here is inconsistent enough to bother
me. And we've already got the infrastructure to measure it, might as well use it...

Rob