www/py-gunicorn rc script change

From: Pete Wright <pete_at_nomadlogic.org>
Date: Thu, 05 Sep 2024 14:56:44 UTC
hello - i filed this PR a little while ago and was hoping to get some 
eyes on it.  i'm using the patched version of the rc script proposed in 
my production environment successfully and was hoping it could be picked 
up upstream.  in fact without this patch things like newsyslog won't 
work correctly.

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=281005

thanks!

-pete

-- 
Pete Wright
pete@nomadlogic.org