[Cake] Hopefully fixed ACK filter for v6

[Toke Høiland-Jørgensen]

Sebastian Moeller <moeller0 at gmx.de> writes:

> Hi Toke, 
>
> I certainly am thankful for your work, and believe you deserve $CAKE
> and $BEVERAGE, I am also leaf to believe 'the cake is a lie'
> https://m.youtube.com/watch?v=qdrs3gr_GAs ;)

Haha, yes, of course I am aware that the cake really is a lie. Which
makes us in league with GLADOS, I suppose, since we're promising
everyone CAKE ;)

-Toke