Bug #14355 Partitions: SHOW ENGINES shows partition=no

Description:
The partition feature is called an "engine". So when I
say "show variables like '%partition%'" I see
have_partition_engine=YES. But when I say "show engines"
I see "partition=NO. I would consider it a good "fix"
if everyone stopped calling partitions an engine.

How to repeat:
mysql> show variables like '%partition%';
+-----------------------+-------+
| Variable_name         | Value |
+-----------------------+-------+
| have_partition_engine | YES   |
+-----------------------+-------+
1 row in set (0.00 sec)

mysql> show engines;
+------------+----------+------------------------------------------------------------------------+
| Engine     | Support  | Comment                                                                |
+------------+----------+------------------------------------------------------------------------+
| MEMORY     | YES      | Hash based, stored in memory, useful for temporary tables              |
| MyISAM     | DEFAULT  | Default engine as of MySQL 3.23 with great performance                 |
| InnoDB     | YES      | Supports transactions, row-level locking, and foreign keys             |
| BerkeleyDB | YES      | Supports transactions and page-level locking                           |
| ARCHIVE    | YES      | Archive storage engine                                                 |
| CSV        | YES      | CSV storage engine                                                     |
| BLACKHOLE  | YES      | /dev/null storage engine (anything you write to it disappears)         |
| FEDERATED  | YES      | Federated MySQL storage engine                                         |
| ndbcluster | DISABLED | Clustered, fault-tolerant, memory-based tables                         |
| partition  | NO       |                                                                        |
| MRG_MYISAM | YES      | Collection of identical MyISAM tables                                  |
| binlog     | DISABLED | This is a meta storage engine to represent the binlog in a transaction |
+------------+----------+------------------------------------------------------------------------+
12 rows in set (0.00 sec)

Completely agree with the comment but still not a bug

By closer thought one should ensure that the partition engine is not listed
in show engines.

Partition engine and Binlog is now not shown in SHOW ENGINES command.
Also changed name on have_partition_engine to have_partition_support

Fixed, will at least appear in 5.1.6

Noted in 5.1.6 changelog.

          Partition support is not an <quote>engine</quote>, but it was
          included in the output of <literal>SHOW ENGINES</literal>. Now
          it does not. (Bug #14355)