Fixed test runner to display slash codes.

Change-Id: Ia032387eb120ad2004cd6d8deae111bdf4c111de
Reviewed-on: http://review.couchbase.org/26500
Reviewed-by: Trond Norbye <trond.norbye@gmail.com>
Tested-by: Trond Norbye <trond.norbye@gmail.com>