Fix the copyright year

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18348 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavformat/rtp_h263.c

 /*
  * RTP packetization for H.263 video
  * Copyright (c) 2009 Luca Abeni
- * Copyright (c) 2007 Martin Storsjo
+ * Copyright (c) 2009 Martin Storsjo
  *
  * This file is part of FFmpeg.
  *