Fixed error msg since Gorilla websocket library got updated.
Fixed error msg since Gorilla websocket library got updated.

[#78384394]

Signed-off-by: Joseph Rodriguez <ee69355181f1c4b7831646351ad3f369b2c666ba@pivotal.io>

cloudfoundry/noaa,cloudfoundry/noaa,hpcloud/noaa,hpcloud/noaa