improve logging
improve logging

Signed-off-by: Henry Stanley <b0b1d04541cab6bb75fdc9ee8f1c2e7f813af8bc@pivotal.io>
Signed-off-by: Jonathan Qiwen Tsang <3d227aa6bffde73f6e08f0ffd3491f423c329e82@pivotal.io>
Signed-off-by: Henry Stanley <b0b1d04541cab6bb75fdc9ee8f1c2e7f813af8bc@pivotal.io>
Signed-off-by: Jonathan Qiwen Tsang <3d227aa6bffde73f6e08f0ffd3491f423c329e82@pivotal.io>

pivotal-cf/cf-redis-smoke-tests,pivotal-cf/cf-redis-smoke-tests