Fix typo.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@8065 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/utils.c

@@ -1276,7 +1276,7 @@ void avcodec_init(void)
 }
 
 /**
- * Flush buffers, should be called when seeking or when swicthing to a different stream.
+ * Flush buffers, should be called when seeking or when switching to a different stream.
  */
 void avcodec_flush_buffers(AVCodecContext *avctx)
 {