Silence non-critical messages from Jetty in tests
Silence non-critical messages from Jetty in tests

This makes the log output much more readable.

Change-Id: I318900cc250d77faacb90a8dcc84f3bdb525ac1b
Signed-off-by: Edwin Kempin <d43fb6c98c97e553b671ed9a9318100f1de386e7@google.com>

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