New review comment by paper42 on void-packages repository

https://github.com/void-linux/void-packages/pull/30139#discussion_r693556222

Comment:
good idea, I modified it a bit to make it a bit more intuitive in my opinion:

* `nocheckperms` If set, xbps-src will not fail on common permission errors (world writable files, etc.)
* `nofixperms` If set, xbps-src will not fix common permission errors (executable manpages, etc.)

So the variables are entirely independent now, if nocheckperms is set, only fix will run, if both are set, the hook will not do anything, etc.