CBD-87: updated error messages for stdout config/design
CBD-87: updated error messages for stdout config/design

Change-Id: I5171d64d406ba3832944379e42d66d6ab36622c7
Reviewed-on: http://review.couchbase.org/17497
Reviewed-by: Pavel Paulau <dd88eded64e90046a680e3a6c0828ceb8fe8a0e7@gmail.com>
Tested-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>

membase/membase-cli,couchbase/couchbase-cli,couchbaselabs/couchbase-cli,couchbaselabs/couchbase-cli,membase/membase-cli,couchbaselabs/couchbase-cli,couchbase/couchbase-cli,membase/membase-cli