There is an updated pull request by classabbyamp against master on the void-packages repository

https://github.com/classabbyamp/void-packages base-files-mpl2
https://github.com/void-linux/void-packages/pull/39832

base-files: add MPL-2.0 to licenses
isn't `vlicense`d but per the terms should probably be included


A patch file from https://github.com/void-linux/void-packages/pull/39832.patch is attached