revise copyright dates in LICENSE.txt

jon-jacky · jon-jacky · commit 2302fe0145e8 · 2013-04-30T22:06:14.000-07:00
diff --git a/LICENSE.txt b/LICENSE.txt
@@ -1,4 +1,4 @@
-Copyright (c) 2009, 2010, 2011  Jonathan Jacky
+Copyright (c) 2009 -- 2013, Jonathan Jacky
 
 All rights reserved.
 
