fix the sql file

src/test/regress/sql/multi_cluster_management.sql

@@ -14,12 +14,15 @@ RESET citus.metadata_sync_mode;
 -- I am coordinator
 SELECT citus_is_coordinator();
 
--- I am primary node
-select citus.citus_is_primary_node();
+-- I am primary node (fails beacuse not set in pg_dist)
+select citus_is_primary_node();
 
 -- make sure coordinator is always in metadata.
 SELECT citus_set_coordinator_host('localhost');
 
+-- I am primary node
+select citus_is_primary_node();
+
 -- workers are not coordinator
 SELECT result FROM run_command_on_workers('SELECT citus_is_coordinator()');