MB-24201 - cbdatasource use better HELO name
MB-24201 - cbdatasource use better HELO name

Changed to more meaningful 'HELO' name

Change-Id: I3708b3c411568357aa894b45a62f15fce39ac6e3
Reviewed-on: http://review.couchbase.org/77656
Reviewed-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>
Tested-by: Sreekanth Sivasankaran

couchbase/go-couchbase