Update hstore expected output to match what you get on GPDB.

contrib/hstore/expected/hstore.out

@@ -558,6 +558,7 @@ select 'a=>b, b=>1, c=>NULL'::hstore @> 'a=>b, c=>q';
 (1 row)
 
 CREATE TABLE testhstore (h hstore);
+NOTICE:  Table doesn't have 'DISTRIBUTED BY' clause, and no column type is suitable for a distribution key. Creating a NULL policy entry.
 \copy testhstore from 'data/hstore.data'
 select count(*) from testhstore where h @> 'wait=>NULL';
  count 
@@ -611,6 +612,7 @@ select count(*) from testhstore where h ? 'public';
 
 drop index hidx;
 create index hidx on testhstore using gin (h);
+ERROR:  GIN indexes are not supported
 set enable_seqscan=off;
 select count(*) from testhstore where h @> 'wait=>NULL';
  count