avcodec/huffyuv: update years in copyright

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/huffyuv.c

@@ -1,7 +1,7 @@
 /*
  * huffyuv codec for libavcodec
  *
- * Copyright (c) 2002-2003 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2002-2014 Michael Niedermayer <michaelni@gmx.at>
  *
  * see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of
  * the algorithm used

libavcodec/huffyuv.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2002-2003 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2002-2014 Michael Niedermayer <michaelni@gmx.at>
  *
  * see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of
  * the algorithm used

libavcodec/huffyuvdec.c

@@ -1,7 +1,7 @@
 /*
  * huffyuv decoder
  *
- * Copyright (c) 2002-2003 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2002-2014 Michael Niedermayer <michaelni@gmx.at>
  *
  * see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of
  * the algorithm used

libavcodec/huffyuvenc.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2002-2003 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2002-2014 Michael Niedermayer <michaelni@gmx.at>
  *
  * see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of
  * the algorithm used