unqualified function calls in system_views.sql

Do these need to be fixed in backend/catalog/system_views.sql to have 
pg_catalog. before everything?

eg.

CREATE VIEW pg_rules AS    SELECT        N.nspname AS schemaname,        C.relname AS tablename,        R.rulename AS
rulename,       pg_get_ruledef(R.oid) AS definition    FROM (pg_rewrite R JOIN pg_class C ON (C.oid = R.ev_class))
 LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)    WHERE R.rulename != '_RETURN';
 

Chris