There is a new pull request by Joey152 against master on the void-packages repository

https://github.com/Joey152/void-packages herbstluftwm
https://github.com/void-linux/void-packages/pull/21228

herbstluftwm: update to 0.8.1


A patch file from https://github.com/void-linux/void-packages/pull/21228.patch is attached