licence: add missing copyright headers

Refs #67102

Change-Id: I29bcb1912e108c151804532cc1f9322cec831050
diff --git a/AudioPrefsVC.h b/AudioPrefsVC.h
index 45124c0..91bd824 100644
--- a/AudioPrefsVC.h
+++ b/AudioPrefsVC.h
@@ -1,13 +1,39 @@
-//
-//  AudioPrefsVC.h
-//  Ring
-//
-//  Created by Alexandre Lision on 2015-02-19.
-//
-//
+/*
+ *  Copyright (C) 2004-2015 Savoir-Faire Linux Inc.
+ *  Author: Alexandre Lision <alexandre.lision@savoirfairelinux.com>
+ *
+ *  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
+ *  (at your option) any later version.
+ *
+ *  This program 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, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *
+ *  Additional permission under GNU GPL version 3 section 7:
+ *
+ *  If you modify this program, or any covered work, by linking or
+ *  combining it with the OpenSSL project's OpenSSL library (or a
+ *  modified version of that library), containing parts covered by the
+ *  terms of the OpenSSL or SSLeay licenses, Savoir-Faire Linux Inc.
+ *  grants you additional permission to convey the resulting work.
+ *  Corresponding Source for a non-source form of such a combination
+ *  shall include the source code for the parts of OpenSSL used as well
+ *  as that of the covered work.
+ */
+#ifndef AUDIOPREFSVC_H
+#define AUDIOPREFSVC_H
 
 #import <Cocoa/Cocoa.h>
 
 @interface AudioPrefsVC : NSViewController
 
 @end
+
+#endif // AUDIOPREFSVC_H