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

https://github.com/ekomizer/void-packages xinit-fix-1
https://github.com/void-linux/void-packages/pull/12255

xinit: add patch and update revision
Taken from: https://git.archlinux.org/svntogit/packages.git/tree/trunk/06_move_serverauthfile_into_tmp.diff?h=packages/xorg-xinit

A patch file from https://github.com/void-linux/void-packages/pull/12255.patch is attached