New review comment by robbert-vdh on void-packages repository

https://github.com/void-linux/void-packages/pull/39475#discussion_r985243712

Comment:
You can use a patch to change the `-P` in https://github.com/robbert-vdh/yabridge/blob/5b29ac386e346666b1407c31639c53ec99bf63e6/meson.build#L154 into `-E` since `-P` is strictly speaking not needed anymore (it's an artifact from a pervious version that required lookaround). I've never encountered a `grep` on Linux without PCRE support before though.