Bug#689811: mp3diags: incorrect debian/copyright and confusing upstream license information

[Bart Martens <bartm@debian.org>]

Package: mp3diags
Severity: serious
Version: 1.0.11.076-1

The information in debian/copyright is not correct.

For example, src/SerSupport.cpp has license "GNU General Public License version
2 as published by the Free Software Foundation", while debian/copyright claims
that it has license "GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your option) any
later version".

Another example is that the files in src/images/ appear to have license GPL-3
or LGPL-3, see the files src/images/*txt, and that is not mentioned in
debian/copyright.  But when I look in the .svg-files then I see GPL/2.0 and
LGPL/2.1.  It is not clear which license(s) apply.

Also, the upstream source contains these licenses, and it is not clear to which
files these licenses apply:
  license.boost.txt
  license.gplv2.txt
  license.gplv3.txt
  license.lgpl-2.1.txt
  license.lgplv3.txt
  license.zlib.txt
  src/licences/zlib.txt
  src/licences/lgplv3.txt
  src/licences/lgpl-2.1.txt
  src/licences/gplv2.txt
  src/licences/gplv3.txt
  src/licences/boost.txt