Follow-up on GitHub sourced files

[John Klos <john%ziaspace.com@localhost>]

In August of last year I wrote about GitHub changing tarballs:

http://mail-index.netbsd.org/tech-pkg/2017/08/07/msg018580.html

I just came across this, which taught me a little about how to better 
select GitHub hosted files. Perhaps it'll help someone here:

https://marc.info/?l=openbsd-ports&m=151973450514279