There is an updated pull request by renatoaguiar against master on the void-packages repository

https://github.com/renatoaguiar/void-packages font-spleen
https://github.com/void-linux/void-packages/pull/14421

font-spleen: update to 1.3.0


A patch file from https://github.com/void-linux/void-packages/pull/14421.patch is attached