psql: Schema-qualify typecast in one \d query

Bug introduced in my commit bc87f22

Author: alvherre

src/bin/psql/describe.c

@@ -2890,7 +2890,7 @@ describeOneTableDetails(const char *schemaname,
 		if (pset.sversion >= 110000)
 			appendPQExpBuffer(&buf, "(NOT t.tgisinternal OR (t.tgisinternal AND t.tgenabled = 'D') \n"
 							  "    OR EXISTS (SELECT 1 FROM pg_catalog.pg_depend WHERE objid = t.oid \n"
-							  "        AND refclassid = 'pg_catalog.pg_trigger'::regclass))");
+							  "        AND refclassid = 'pg_catalog.pg_trigger'::pg_catalog.regclass))");
 		else if (pset.sversion >= 90000)
 			/* display/warn about disabled internal triggers */
 			appendPQExpBuffer(&buf, "(NOT t.tgisinternal OR (t.tgisinternal AND t.tgenabled = 'D'))");