[bug#41830] xl2tpd fixes

[Ivan Kozlov]

Hi,

There was a typo in the patch in a compiler flag (-DPPD instead of -DPPPD). 
Would you please correct that?

14.06.2020, 12:59, "Mathieu Othacehe" <othacehe@gnu.org>:
> Привет Иван!
>
> Thanks for this patch :). For future contributions, patches should be
> made on top of Guix git repository, using "git format-patch". You should
> also follow the guidelines here:
> https://guix.gnu.org/manual/en/html_node/Submitting-Patches.html#Sending-a-Patch-Series
> in particular, regarding the commit message.
>
> I applied the patch, added your copyright and a commit message.
>
> Thanks,
>
> Mathieu