fixing expected error message in helm test

Change-Id: I12ad80cb65db946cd6ffb1cddeabd717bbcc00c8
diff --git a/src/test/cord-api/Tests/DemoSimpleExampleService.robot b/src/test/cord-api/Tests/DemoSimpleExampleService.robot
index da40feb..07003f9 100644
--- a/src/test/cord-api/Tests/DemoSimpleExampleService.robot
+++ b/src/test/cord-api/Tests/DemoSimpleExampleService.robot
@@ -48,7 +48,7 @@
 
 Validate Webserver Gone
     ${output}=    Run    http ${k8_pod_ip}
-    Should Contain    ${output}    Failed to establish a new connection
+    Should Contain    ${output}    Request timed out
 
 Obtain SimpleExampleService SI
     ${resp}=    CORD Get    /xosapi/v1/simpleexampleservice/simpleexampleserviceinstances