New comment by pullmoll on void-packages repository

https://github.com/void-linux/void-packages/pull/15437#issuecomment-541446675

Comment:
I hope we don't have a situation where some host directory is (bind) mounted at `$XBPS_MASTERDIR`  or below, or otherwise you'll zap the host's tree there as well. Perhaps add `umount -Rrf $XBPS_MASTERDIR` to be a little safer?

Edit: Never mind. When zap is called there are no active mounts AFAICS.