New review comment by sgn on void-packages repository

https://github.com/void-linux/void-packages/pull/40128#discussion_r1007883370

Comment:
And this is another single `awk`, too
```sh
awk '$1 ~ /^PARTUUID=/ && $2 == "/" { print $1 }' /etc/fstab
```
Anyway, I think partuuid should be searched first, and uuid as a fallback because it won't invoke blkid or anything

---
Hm, no.
You still keep `UUID=` in `/etc/fstab` but assuming it's `PARTUUID=`, that's wrong.
You should use uuid with `UUID=` and partuuid with `PARTUUID=`, don't mix them.

And this doesn't work for `/dev/sd??` or something like that.