[5184] Add authoritative to grammar example

sebschrader · tomaszmrugalski · commit fdc41e3f3e84 · 2018-11-07T23:17:45.000+07:00
diff --git a/doc/devel/bison.dox b/doc/devel/bison.dox
@@ -434,6 +434,7 @@ Here's the complete set of changes that were necessary.
                 | reservation_mode
                 | relay
                 | match_client_id
+                | authoritative
                 | next_server
                 | subnet_4o6_interface
                 | subnet_4o6_interface_id (*)
