HUM-202 : fix if-unmodified-since on slos smoke test
HUM-202 : fix if-unmodified-since on slos smoke test

redbo/hummingbird,creiht/hummingbird,creiht/hummingbird,troubling/hummingbird,nadeemsyed/hummingbird,corystone/hummingbird,corystone/hummingbird,redbo/hummingbird,nadeemsyed/hummingbird,troubling/hummingbird