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

https://github.com/daniel-eys/void-packages dnsmap
https://github.com/void-linux/void-packages/pull/21126

dnsmap: update to 0.35.
dnsmap has been resurrected within the https://github.com/resurrecting-open-source-projects
github-organization, so use this as upstream now.

A patch file from https://github.com/void-linux/void-packages/pull/21126.patch is attached