[issue38178] Remove explicit "loop" argument from EchoClientProtocol example

[Hrvoje Nikšić]

Change by Hrvoje Nikšić <hniksic at gmail.com>:


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keywords: +patch
pull_requests: +15769
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/16159

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38178>
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