New review comment by sgn on void-packages repository

https://github.com/void-linux/void-packages/pull/23646#discussion_r459174825

Comment:
> awk version of `PPP_VERSION` ends up being `"2.4.7"` while the sed version didn't have quotes, but `--with-pppd-plugin-dir=/usr/lib/pppd/"2.4.7"` will work fine as a configure argument, so I'm okay with it.

That's right. I aware that `awk 'print $3'`'s output will be quoted with d-quotes.
But, the quotes will be stripped out with shell expansion.