'also-notify' has evolved significantly, introduce new logic

[egberts]

also-notify
             [ port integer ]
             [ dscp integer ]  # added in v9.10
             "{"
              (
                 (
                     (
                       ipv4_address [ port integer ]
                       | ipv6_address [ port integer ]
                     )
                     [ port integer ]
                )
                ^ <primary_name>  # added in v9.9
            )
            (  
                [ key string ]  # added in v9.9
                [ dscp integer ]  # added in v9.10
                [ tls string ]  # added in v9.18?
             )
             ";"
        )
        " };"

[egberts]

Fixed in commit 4e8f9d5