Improve LogOps to print out the return value as well as parameters
Improve LogOps to print out the return value as well as parameters

Change-Id: If4a002f5fd3604e61580131e232b9213ad641f67
Reviewed-on: http://review.couchbase.org/62288
Tested-by: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Dave Rigby <a09264da4832c7ff1d3bf1608a19f4b870f93750@couchbase.com>
Reviewed-by: Chiyoung Seo <fcffc23db27b19ee4ebba46695ee6b50e09216a2@couchbase.com>

couchbaselabs/couchstore,couchbaselabs/couchstore,couchbaselabs/couchstore