New review comment by sgn on void-packages repository

https://github.com/void-linux/void-packages/pull/30950#discussion_r633639131

Comment:
I haven't checked. However, as of it's now, it can't be run in Ubuntu since `xbps-src` needs to check for `xbps-*`.
I'm not sure if it's worth to be put inside `xbps-src`.