Email notification configured at the service level for Process vSphere alarms rule sends null value (180098)

Process vSphere alarms rule creates an alarm and since email notification has been configured at the service level, it sends the email notification with a  null value 

This is an example of the null value:

Fatal: [Oct 29, 2015 9:58:54 AM]  (VMWDatastore: servername (192.168.0.1 datastore-name)) null:  Alarm Datastore usage on disk was triggered on servername: value is above the threshold of 8500.0 . This alarm was defined and triggered on vSphere and needs to be acknowledged/cleared via a vSphere client. 

RESOLUTION: