New review comment by Chocimier on void-packages repository

https://github.com/void-linux/void-packages/pull/30108#discussion_r637258600

Comment:
Version scheme change is problematic. Now one has to update version *and* distfiles. 190600.20161030 [edit:] to 19.7.0 is also seen downgrade by xbps, so `reverts` with old versions would need to be added, and xbps-still would list it as downgrade.