This should be the right expected file.

src/test/regress/expected/horology.out

@@ -118,9 +118,9 @@ SELECT interval '04:30' - time '01:02' AS "+03:28";
 (1 row)
 
 SELECT CAST(time with time zone '01:02-08' AS interval) AS "+00:01";
-ERROR:  Cannot cast type time with time zone to interval
+ERROR:  Cannot cast type 'time with time zone' to 'interval'
 SELECT CAST(interval '02:03' AS time with time zone) AS "02:03:00-08";
-ERROR:  Cannot cast type interval to time with time zone
+ERROR:  Cannot cast type 'interval' to 'time with time zone'
 SELECT time with time zone '01:30-08' - interval '02:01' AS "23:29:00-08";
  23:29:00-08 
 -------------