Copyright for log4net source package in Focal

This package was debianized by Dylan R. E. Moonfire  on
Fri, 18 Mar 2005 15:48:04 -0600.

It was downloaded from http://logging.apache.org/log4net/

Copyright: Copyright (C) 2001-2005 The Apache Foundation

Upstream Authors: Nicko Cadell, Niall Daley, Gert Driesen

License:
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                           Version 2.0, January 2004
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