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-rw-r--r--src/gradient-chemistry.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/gradient-chemistry.cpp b/src/gradient-chemistry.cpp
index 8b5d2d1ff..8b3ff4d8a 100644
--- a/src/gradient-chemistry.cpp
+++ b/src/gradient-chemistry.cpp
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Various utility methods for gradients
*
@@ -15,7 +16,7 @@
* Copyright (C) 2001-2005 authors
* Copyright (C) 2001 Ximian, Inc.
*
- * Released under GNU GPL, read the file 'COPYING' for more information
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include <glibmm/i18n.h>