Copyright for ruby-narray source package in Bionic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: ruby-narray
Source: http://masa16.github.io/narray/

Files: *
Copyright: 1999-2013 Masahiro TANAKA 
License: GPL-2.0+ or Ruby's

Files: debian/*
Copyright: 2006-2011 Daigo Moriwaki 
           2006-2018 Youhei SASAKI 
License: GPL-2.0+

License: GPL-2.0+
 This package is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.
 .
 This package is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 .
 You should have received a copy of the GNU General Public License
 along with this program. If not, see 
 .
 On Debian systems, the complete text of the GNU General
 Public License version 2 can be found in "/usr/share/common-licenses/GPL-2".

License: Ruby's
  You can redistribute it and/or modify it under either the terms of the GPL
  (on Debian systems, the complete text of the GPL License can be found in
  /usr/share/common-licenses/GPL-2), or the conditions below:
  .
  1. You may make and give away verbatim copies of the source form of the
     software without restriction, provided that you duplicate all of the
     original copyright notices and associated disclaimers.
  2. You may modify your copy of the software in any way, provided that
     you do at least ONE of the following:
       a) place your modifications in the Public Domain or otherwise
          make them Freely Available, such as by posting said
          modifications to Usenet or an equivalent medium, or by allowing
          the author to include your modifications in the software.
       b) use the modified software only within your corporation or
          organization.
       c) give non-standard binaries non-standard names, with
          instructions on where to get the original software distribution.
       d) make other distribution arrangements with the author.
  3. You may distribute the software in object code or binary form,
     provided that you do at least ONE of the following:
       a) distribute the binaries and library files of the software,
          together with instructions (in the manual page or equivalent)
          on where to get the original distribution.
       b) accompany the distribution with the machine-readable source of
          the software.
       c) give non-standard binaries non-standard names, with
          instructions on where to get the original software distribution.
       d) make other distribution arrangements with the author.
  4. You may modify and include the part of the software into any other
     software (possibly commercial).  But some files in the distribution
     are not written by the author, so that they are not under these terms.
     .
     For the list of those files and their copying conditions, see the
     file LEGAL.
  5. The scripts and library files supplied as input to or produced as
     output from the software do not automatically fall under the
     copyright of the software, but belong to whomever generated them,
     and may be sold commercially, and may be aggregated with this
     software.
  6. THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
     IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     PURPOSE.