Simon has resolved the SHA1 licence upstream[1] by clarifying that the GnuPG code was originally available under GPLv2+.
[1] https://github.com/chocolate-doom/chocolate-doom/commit/4ffeb43fb33f5899f1aaf2b4bae484d2a3d71211 -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org