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-rw-r--r--src/trace/potrace/inkscape-potrace.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/trace/potrace/inkscape-potrace.cpp b/src/trace/potrace/inkscape-potrace.cpp
index ac26edcd4..4b50b1e1d 100644
--- a/src/trace/potrace/inkscape-potrace.cpp
+++ b/src/trace/potrace/inkscape-potrace.cpp
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* This is the C++ glue between Inkscape and Potrace
*
@@ -7,7 +8,7 @@
*
* Copyright (C) 2004-2006 Authors
*
- * Released under GNU GPL, read the file 'COPYING' for more information
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
*
* Potrace, the wonderful tracer located at http://potrace.sourceforge.net,
* is provided by the generosity of Peter Selinger, to whom we are grateful.