New comment by Duncaen on void-packages repository

https://github.com/void-linux/void-packages/pull/45381#issuecomment-1704228322

Comment:
I would generally stick with what upstream does, which is to use `/etc`.

`mutable_files` basically just disables `xbps-pkgdb` hash checks for the specified, package updates will still overwrite them.

This is generally not useful for most packages and the manual description should be more clear about it.