[PATCH] manual: document getsubopt standardization.

[Collin Funk]

Adhemerval Zanella Netto <adhemerval.zanella@linaro.org> writes:

> LGTM, thanks.
>
> Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

Thanks for the quick review.

Could you push for me? I don't have access. :)

Collin