extend the names API

src/estonian/ExtendEst.gf

@@ -437,7 +437,7 @@ concrete ExtendEst of Extend =
     WithoutVP vp = {s = "ilma" ++ infVPdefault vp InfMata} ;
 
 
-lin GivenName, Surname = \n -> n ;
+lin GivenName, MaleSurname, FemaleSurname = \n -> n ;
 lin FullName gn sn = {
        s = \\c => gn.s ! Nom ++ sn.s ! c
     } ;