update copyright statements

* include 2010
* add Andreas Eversberg and Sylvain
diff --git a/openbsc/src/bsc_hack.c b/openbsc/src/bsc_hack.c
index 581e9be..e7db3c7 100644
--- a/openbsc/src/bsc_hack.c
+++ b/openbsc/src/bsc_hack.c
@@ -1,6 +1,6 @@
 /* A hackish minimal BSC (+MSC +HLR) implementation */
 
-/* (C) 2008-2009 by Harald Welte <laforge@gnumonks.org>
+/* (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>
  * (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
  * All Rights Reserved
  *