A couple of questions about "fortune freebsd-tips"

[Ottavio Caruso]

On my system (12.1-RELEASE-p4) I have:
% ls /usr/share/games/fortune/
freebsd-tips freebsd-tips.dat

1) where do they come from? I can't see them in the sources and I
definitely didn't install it from ports.

2) I'd like to reuse and modify freebsd-tips and include into another
project. I can't see any copyright notes about the fortune files.
There are attributions. I don't know what to do with these
attributions if I modify the text.

Thanks.