winemp3.acm: Update mpegl3.c copyright notice.

dlls/winemp3.acm/mpegl3.c

diff --git a/dlls/winemp3.acm/mpegl3.c b/dlls/winemp3.acm/mpegl3.c
index 92a3afc..3c60fff 100644
--- a/dlls/winemp3.acm/mpegl3.c
+++ b/dlls/winemp3.acm/mpegl3.c
@@ -3,6 +3,7 @@
  *
  * Copyright (C) 2002 Eric Pouech
  * Copyright (C) 2009 CodeWeavers, Aric Stewart
+ * Copyright (C) 2010 Kristofer Henriksson
  *
  *
  * This library is free software; you can redistribute it and/or