multi_router_planner: be terse for ctes with false wheres

src/test/regress/expected/multi_router_planner.out

@@ -1573,12 +1573,13 @@ DETAIL:  distribution column value: 1
 (0 rows)
 
 -- CTEs with where false
+-- terse because distribution column inference varies between pg11 & pg12
+\set VERBOSITY terse
 WITH id_author AS ( SELECT id, author_id FROM articles_hash WHERE author_id = 1),
 id_title AS (SELECT id, title from articles_hash WHERE author_id = 1 and 1=0)
 SELECT * FROM id_author, id_title WHERE id_author.id = id_title.id;
 DEBUG:  Creating router plan
 DEBUG:  Plan is router executable
-DETAIL:  distribution column value: 1
  id | author_id | id | title 
 ----+-----------+----+-------
 (0 rows)
@@ -1588,11 +1589,11 @@ id_title AS (SELECT id, title from articles_hash WHERE author_id = 1)
 SELECT * FROM id_author, id_title WHERE id_author.id = id_title.id and 1=0;
 DEBUG:  Creating router plan
 DEBUG:  Plan is router executable
-DETAIL:  distribution column value: 1
  id | author_id | id | title 
 ----+-----------+----+-------
 (0 rows)
 
+\set VERBOSITY DEFAULT
 WITH RECURSIVE hierarchy as (
 	SELECT *, 1 AS level
 		FROM company_employees

src/test/regress/sql/multi_router_planner.sql

@@ -681,6 +681,9 @@ INTERSECT
 (SELECT * FROM articles_hash WHERE author_id = 2 and 1=0);
 
 -- CTEs with where false
+-- terse because distribution column inference varies between pg11 & pg12
+\set VERBOSITY terse
+
 WITH id_author AS ( SELECT id, author_id FROM articles_hash WHERE author_id = 1),
 id_title AS (SELECT id, title from articles_hash WHERE author_id = 1 and 1=0)
 SELECT * FROM id_author, id_title WHERE id_author.id = id_title.id;
@@ -689,6 +692,8 @@ WITH id_author AS ( SELECT id, author_id FROM articles_hash WHERE author_id = 1)
 id_title AS (SELECT id, title from articles_hash WHERE author_id = 1)
 SELECT * FROM id_author, id_title WHERE id_author.id = id_title.id and 1=0;
 
+\set VERBOSITY DEFAULT
+
 WITH RECURSIVE hierarchy as (
 	SELECT *, 1 AS level
 		FROM company_employees