[PATCH v4] Add helper script for glibc debugging

[Gabriel F. T. Gomes]

On Fri, 27 Sep 2019, Carlos O'Donell wrote:

>Would you be willing to also update:
>https://sourceware.org/glibc/wiki/Testing/Builds
>
>We should suggest the new option.

Sure. I'll update it with the new instructions. :)

Thanks,
Gabriel