Description:
------------
---
From manual page: http://www.php.net/gearmanclient.addserver#refsect1-
gearmanclient.addserver-description
---

Documentation clearly shows that hostname and port numbers are optional. However 
in practice, the function fails to connect with default values when they are left 
unspecified.

Test script:
---------------
$gearman_client = new \GearmanClient();
$gearman_client->addServer();
// call verify() function in my worker and send pathname
$task = $gearman_client->doNormal('verify', $pathname);


Expected result:
----------------
I expect to see my debug output from the worker but it never runs because Gearman 
never receives a connect (according to the Gearman log).


Actual result:
--------------
Apache error log contains:

[Fri Feb 15 11:55:38 2013] [error] [client 10.0.1.32] PHP Warning:  
GearmanClient::doNormal(): send_packet(GEARMAN_COULD_NOT_CONNECT) Failed to send 
server-options packet -> libgearman/connection.cc:430