New review comment by paper42 on void-packages repository

https://github.com/void-linux/void-packages/pull/40434#discussion_r1056881814

Comment:
```suggestion
	/bin/sh ${wrksrc}/hplip-${version}-plugin.run \
```
or even this if it's possible
```suggestion
	/bin/sh ./hplip-${version}-plugin.run \
```