Copyright for htdig source package in Bionic

This package was originally debianized by Christian Schwarz .
Now maintained by Stijn de Bekker 

It was downloaded from: http://www.htdig.org

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HTDig is Copyright (c) 1995-2004 the ht://Dig Group
Contributions are from many; see htdoc/THANKS.html.

HTDig is distributed under GPL, Version 2.
Please refer to /usr/share/common-licenses/GPL-2 for license details.