LP:997460 - Truncate table on partitioned Aria table fails with ER_ILLEGAL_HA

https://bugs.launchpad.net/maria/+bug/997460 (filed by user)

1. Test case:

   CREATE TABLE t ( i INT )

   ENGINE=Aria

   PARTITION BY HASH(i) PARTITIONS 2;

   SET AUTOCOMMIT = 0;

   TRUNCATE TABLE t;

Result:

# 'TRUNCATE TABLE t' failed: 1031: Table storage engine for 't' doesn't have this option