Re: [PATCH 2/2] branch, for-each-ref: add option to omit empty lines

> On Thu, Mar 30, 2023 at 08:54:35AM -0700, Junio C Hamano wrote:
>
>>  * now we care if output is empty anyway, perhaps we can optimize
>>    out fwrite() too, perhaps with something like
>> 
>> 	if (output.len || !omit_empty)
>> 		printf("%.*s\n", output.len, output.buf);
>> 
>>    perhaps?
>> 
>> I am not sure about the latter, but we tend to use "%.*s" liberally
>> when we could use fwrite() in our codebase for brevity, so ...
>
> I think it would be a mistake here, as you can use "%00" in the format
> to include a NUL in the output.

>
> (The rest of your review seemed quite sensible to me, and I like the
> idea of the omit-empty option in general).
>
> -Peff