tent/cache config read

<blockquote>not sure if it would not break any parser (e.g. logwatch)</blockquote>
I don't think so, and i think, you confuse it - it is a client, not the server, so we have no really logs - just stdout by "-v" and in test cases.
<blockquote>--log-traceback</blockquote>I need to think a several time about...