Update copyrights for dawn of 2015.
diff --git a/src/lease.c b/src/lease.c
index 5d56b1b..545bbb7 100644
--- a/src/lease.c
+++ b/src/lease.c
@@ -1,4 +1,4 @@
-/* dnsmasq is Copyright (c) 2000-2014 Simon Kelley
+/* dnsmasq is Copyright (c) 2000-2015 Simon Kelley
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by