portsigar is squashed with sigar

Change-Id: I155be0a4abb07b8acc4e6c7662954d8423e7d10a
Reviewed-on: http://review.couchbase.org/34848
Reviewed-by: Trond Norbye <trond.norbye@gmail.com>
Tested-by: Trond Norbye <trond.norbye@gmail.com>