Vulnerabilites to investigate:
[X] CVE-2020-14983
    => Fixed in 5.9.0 (inherited fix from Chocolate Doom)

Fails without Python:
[X] Issue reported upstrem
    => Fixed in Git commit ab1a38d8e902baebc7183fb511bd58c50e2b4571
    => Fix released in 5.9.1
[X] Add tool dependency for Python

[X] Add commit message
[X] Fix PLIST
[X] Fix man page sections (4 vs. 5 for file format pages on different OS)
[X] Fix man page default.cfg conflict with chocolate-doom
[X] Rename man page heretic.cfg to crispy-heretic.cfg

[ ] Test whether XDG stuff works as inteded
