Remove a comma from CWI's copyright notice.
diff --git a/README b/README
index 3c2f123..8d18d7d 100644
--- a/README
+++ b/README
@@ -7,7 +7,7 @@
 Copyright (c) 1995-2000 Corporation for National Research Initiatives.
 All rights reserved.
 
-Copyright (c) 1991-1995, Stichting Mathematisch Centrum.
+Copyright (c) 1991-1995 Stichting Mathematisch Centrum.
 All rights reserved.
 
 License information