New comment by Chocimier on void-packages repository

https://github.com/void-linux/void-packages/pull/33223#issuecomment-1009398951

Comment:
It's fine, just forgot about it.

- files in /etc should be marked as `conf_files`
- wt got updated since
- don't set CMAKE_BUILD_TYPE, xbps-src passes its own optimization flags
- leave BUILD_TESTING on for native build