mod_lua: The current way of getting the authz provider name doesn't seem to...

mod_lua: The current way of getting the authz provider name doesn't seem to work. This approach should fix that.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1367504 13f79535-47bb-0310-9956-ffa450edef68