screensdialog:use spdx license syntax

app/settings/screensdialog/screensmodel.cpp

@@ -1,22 +1,8 @@
 /*
- * Copyright 2021  Michail Vourlakos <mvourlakos@gmail.com>
- *
- * This file is part of Latte-Dock
- *
- * Latte-Dock 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 (at your option) any later version.
- *
- * Latte-Dock 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, see <http://www.gnu.org/licenses/>.
- *
- */
+    SPDX-FileCopyrightText: 2021 Michail Vourlakos <mvourlakos@gmail.com>
+
+    SPDX-License-Identifier: GPL-2.0-or-later
+*/
 
 #include "screensmodel.h"
 

app/settings/screensdialog/screensmodel.h

@@ -1,22 +1,8 @@
 /*
- * Copyright 2021  Michail Vourlakos <mvourlakos@gmail.com>
- *
- * This file is part of Latte-Dock
- *
- * Latte-Dock 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 (at your option) any later version.
- *
- * Latte-Dock 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, see <http://www.gnu.org/licenses/>.
- *
- */
+    SPDX-FileCopyrightText: 2021 Michail Vourlakos <mvourlakos@gmail.com>
+
+    SPDX-License-Identifier: GPL-2.0-or-later
+*/
 
 #ifndef SCREENSMODEL_H
 #define SCREENSMODEL_H