Fix typo

Author: abramsh

test-3.9/expected/multicorn_test_limit_1.out

@@ -184,7 +184,7 @@ EXPLAIN SELECT max(test1) OVER (ORDER BY test1) FROM testmulticorn LIMIT 1 OFFSE
                                     QUERY PLAN                                    
 ----------------------------------------------------------------------------------
  Limit  (cost=19.52..29.03 rows=1 width=8)
-   ->  WindowAgg  (cost=10..200.30 rows=20 width=8)
+   ->  WindowAgg  (cost=10.00..200.30 rows=20 width=8)
          ->  Foreign Scan on testmulticorn  (cost=10.00..200.00 rows=20 width=10)
 (3 rows)