cowsay 3.8 release

[apjanke]

Let's make a new release. It's about time.

Milestone

Release milestone:

• https://github.com/cowsay-org/cowsay/milestone/4

I think I'm gonna bump most of the things in there to 3.9 or later, so we can get a 3.8 out to at least ship some new cows.

Blockers

• https://github.com/cowsay-org/cowsay/issues/43
• https://github.com/cowsay-org/cowsay/issues/38

[apjanke]

Done. Behold, cowsay 3.8.0!

https://github.com/cowsay-org/cowsay/releases/tag/v3.8.0