TT#61954 Reorder and reformat copyright File stanzas

As per the spec, the more general one should come first, and the more
specific ones latter. Expand © to Copyright too, and place file entries
on their own line.

Change-Id: Ic0832aa19c76a500b827e06ff7e4af581e9e792b

debian/copyright

@@ -2,15 +2,14 @@ Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
 Source: https://www.sipwise.com/
 Upstream-Contact: Sipwise Development Team <support@sipwise.com>
 
-Files: hooks/pre-commit
-Copyright: © 2007-2016 Joey Hess <id@joeyh.name>
-           © 2014 Pim van den Berg <pim@nethuis.nl>
-           © 2013 Zdenek Crha <zdenek.crha@gmail.com>
-           © 2008 Scott Bronson <b.git@u32.net>
-License: GPL-2+
+Files:
+ *
+Copyright:
+ Copyright © 2007-2015 Sipwise GmbH, Austria
+License: GPL-3+
  This program 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
+ the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
  .
  This program is distributed in the hope that it will be useful,
@@ -22,15 +21,19 @@ License: GPL-2+
  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 Comment:
  On Debian systems, the full text of the GNU General Public License
- version 2 can be found in the file '/usr/share/common-licenses/GPL-2'.
+ version 3 can be found in the file '/usr/share/common-licenses/GPL-3'.
 
-Files: *
+Files:
+ hooks/pre-commit
 Copyright:
- Copyright © 2007-2015, Sipwise GmbH, Austria
-License: GPL-3+
+ Copyright © 2007-2016 Joey Hess <id@joeyh.name>
+ Copyright © 2014 Pim van den Berg <pim@nethuis.nl>
+ Copyright © 2013 Zdenek Crha <zdenek.crha@gmail.com>
+ Copyright © 2008 Scott Bronson <b.git@u32.net>
+License: GPL-2+
  This program 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 3 of the License, or
+ the Free Software Foundation, either version 2 of the License, or
  (at your option) any later version.
  .
  This program is distributed in the hope that it will be useful,
@@ -42,4 +45,4 @@ License: GPL-3+
  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 Comment:
  On Debian systems, the full text of the GNU General Public License
- version 3 can be found in the file '/usr/share/common-licenses/GPL-3'.
+ version 2 can be found in the file '/usr/share/common-licenses/GPL-2'.