pillowfight: fix windows builds

Change-Id: Ia7e8598c1b50593ff4e54f1778bbdc9825aa56cc
Reviewed-on: http://review.couchbase.org/42060
Tested-by: Mark Nunberg <mnunberg@haskalah.org>
Reviewed-by: Sergey Avseyev <sergey.avseyev@gmail.com>