New comment by sgn on void-packages repository

https://github.com/void-linux/void-packages/pull/22035#issuecomment-631139707

Comment:
> why?

To avoid mistake likes messed configure variable


> also toplevel libdirs are not allowed, we only have `usr/lib` except symlinks in `base-files`

It's checked by other code in the top of that file,
`base-files` will provide the symlink in the top-level
https://github.com/void-linux/void-packages/blob/master/common/hooks/pre-pkg/99-pkglint.sh#L10

> and `lib64` is never allowed in general