fix comment typo
fix comment typo

Change-Id: I23cbbdf5fcc460369af862b338af3bf606b37e26
Reviewed-on: http://review.couchbase.org/65678
Reviewed-by: Marty Schoch <ba9951d7d66412e2a57aea395f01176a793cf5eb@gmail.com>
Tested-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>

couchbaselabs/moss,steveyen/moss,steveyen/moss