Copyright for libxml-handler-yawriter-perl source package in Nile V2.0

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: libxml-handler-yawriter-perl
Source: 
#
# Please double check copyright with the licensecheck(1) command.

Files:     Changes
           MANIFEST
           Makefile.PL
           README
           test.pl
           xmlpretty
Copyright: __NO_COPYRIGHT_NOR_LICENSE__
License:   __NO_COPYRIGHT_NOR_LICENSE__

Files:     YAWriter.pm
Copyright: 1999 Michael Koehne 
License:   __UNKNOWN__
 XML::Handler::YAWriter is free software. You can redistribute
 and/or modify this copy under terms of GNU General Public License.
 .
 Based on XML::Handler::XMLWriter Copyright (C) 1999 Ken MacLeod
 Portions derived from code in XML::Writer by David Megginson

#----------------------------------------------------------------------------
# xml and html files (skipped):
#         cdatain.xml
#         edifact03.dtd
#         nullin.xml
#         linux.1.xml
#         directory.xml
#         action.xml

#----------------------------------------------------------------------------
# Files marked as NO_LICENSE_TEXT_FOUND may be covered by the following
# license/copyright files.