Use whitespace separated instead of commas to fit the machine-readable copyright format.

debian/copyright

@@ -7,11 +7,11 @@ Copyright: 2012-2015 LXQt team
            2010-2012 Razor team
 License: LGPL-2.1+
 
-Files: qiconfix/{qiconloader_p.h, qiconloader.cpp}
+Files: qiconfix/qiconloader_p.h qiconfix/qiconloader.cpp
 Copyright: 2013 Digia Plc and/or its subsidiary(-ies)
 License: LGPL-2.1-or-3-with-Digia-1.1-exception
 
-Files: qiconfix/{qiconloader_p_qt4.h, qiconloader_qt4.cpp}
+Files: qiconfix/qiconloader_p_qt4.h qiconfix/qiconloader_qt4.cpp
 Copyright: Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
 License: LGPL-2.1-with-Nokia-Qt-LGPL-Exception or GPL-3