This cripples the test somewhat but the check was bad since depending on
timing it could exit before the output was done, making the test flaky.
Sec-WebSocket-Key: NDMyMTUzMjE2MzIxNzMyMQ==
</protocol>
-<stdout mode="text">
-Connection closed
-</stdout>
+
+# This test used to check that "connection closed" was output, but
+# that is flaky since the outgoing PING just before might fail already
+# and then the test exists before the output gets to be written
</verify>
</testcase>