[bug#46994] [PATCH] gnu: polkit.scm: Add missing copyright headers.

[Morgan.J.Smith@outlook.com]

From: Morgan Smith <Morgan.J.Smith@outlook.com>

* gnu/packages/polkit.scm: Add missing copyright headers.
---

I don't know if this is usually done. I just noticed that the file I was
working on had very few copyright lines so I filled it in with info from the
git history.

---
 gnu/packages/polkit.scm | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/gnu/packages/polkit.scm b/gnu/packages/polkit.scm
index d868aceec2..7c7fc58bb6 100644
--- a/gnu/packages/polkit.scm
+++ b/gnu/packages/polkit.scm
@@ -1,11 +1,17 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2014 Andreas Enge <andreas@enge.fr>
-;;; Copyright © 2015 Andy Wingo <wingo@igalia.com>
-;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
-;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2015 Sou Bunnbu <iyzsong@gmail.com>
+;;; Copyright © 2015, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2016 Andy Wingo <wingo@igalia.com>
+;;; Copyright © 2015, 2016 Mark H Weaver <mhw@netris.org>
+;;; Copyright © 2016, 2019 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016 Alex Kost <alezost@gmail.com>
+;;; Copyright © 2016 David Craven <david@craven.ch>
 ;;; Copyright © 2017 Huang Ying <huang.ying.caritas@gmail.com>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
-;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2018 Leo Famulari <leo@famulari.name>
+;;; Copyright © 2019 Marius Bakke <mbakke@fastmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
-- 
2.30.1