Doesn't take into account MySQL port

[l3rady]

On my installations I am not running mysql on the default port off 3306.

So for WP to connect to a different MySQL port the port number will be held with the DB_HOST in the config.

For example define( 'DB_HOST', 'localhost:3307' );

The script needs to check for port in this config item and pass it to the mysql command with the option -P

[RandallKent]

Codex on wp-config.php configuration for using an alternate MySQL Port: http://codex.wordpress.org/Editing_wp-config.php#MySQL_Alternate_Port