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

https://github.com/dataCobra/void-packages docker
https://github.com/void-linux/void-packages/pull/40597

docker: install manpages
#### Testing the changes
- I tested the changes in this PR: **YES**

I've added the mechanism to build and install the manpages for docker.


A patch file from https://github.com/void-linux/void-packages/pull/40597.patch is attached