upgpkg: 1.24.0-2: Various PKGBUILD fixes

Hi... while creating NGINX 1.24.0-2 package with makepkg, I have received the following warnings at the end of the process: ... ==> Checking for packaging issues... ==> WARNING: backup entry file not in package : etc/nginx/fastcgi.conf ==> WARNING: backup entry file not in package : etc/nginx/fastcgi_params ==> WARNING: backup entry file not in package : etc/nginx/koi-win ==> WARNING: backup entry file not in package : etc/nginx/koi-utf ==> WARNING: backup entry file not in package : etc/nginx/nginx.conf ==> WARNING: backup entry file not in package : etc/nginx/scgi_params ==> WARNING: backup entry file not in package : etc/nginx/uwsgi_params ==> WARNING: backup entry file not in package : etc/nginx/win-utf ==> WARNING: backup entry file not in package : etc/logrotate.d/nginx ... Please, consider insert the "backup=()" variable in "package_nginx-src()" function. Thanks.