New review comment by paper42 on void-packages repository

https://github.com/void-linux/void-packages/pull/42026#discussion_r1094191016

Comment:
`&` is a special character, but I am not sure if this matters
```suggestion
		grep -F -q 'exec 2>&1' $svdir/run || msg_warn "$pkgver: vsv: service '$service' does not contain 'exec 2>&1' to log stderr\n"
```