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-rw-r--r--src/trace/quantize.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/trace/quantize.h b/src/trace/quantize.h
index fa4340877..43942f515 100644
--- a/src/trace/quantize.h
+++ b/src/trace/quantize.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Quantization for Inkscape
*
@@ -6,7 +7,7 @@
*
* Copyright (C) 2006 Authors
*
- * Released under GNU GPL, read the file 'COPYING' for more information
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifndef __QUANTIZE_H__