use ordinal scale for non-numeric inputs
use ordinal scale for non-numeric inputs

Change-Id: I56be0f733d7c4d73533e22b4375e1817080aa7cf
Reviewed-on: http://review.couchbase.org/32572
Tested-by: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Pavel Paulau <dd88eded64e90046a680e3a6c0828ceb8fe8a0e7@gmail.com>

couchbase/cbmonitor,couchbase/cbmonitor