MB-8903: Fix couch_upr "make check"

Change-Id: I45c0ee7fe83197e433bb6a0a11243c867bb30d48
Reviewed-on: http://review.couchbase.org/30707
Reviewed-by: Filipe David Borba Manana <fdmanana@gmail.com>
Tested-by: Volker Mische <volker.mische@gmail.com>