New review comment by Logarithmus on void-packages repository

https://github.com/void-linux/void-packages/pull/31706#discussion_r662201036

Comment:
@q66 please help with this: https://github.com/void-linux/void-packages/pull/31706/checks?check_run_id=2961521405#step:8:336
Why is `chroot-grep` built without `PCRE` support? And how to install normal `grep` as `checkdepends` while avoiding the conflict with `chroot-grep`? Or should I patch this test somehow?