Fix typo.

Originally committed as revision 22936 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/parser.c

@@ -91,7 +91,7 @@ void ff_fetch_timestamp(AVCodecParserContext *s, int off, int remove){
         if (   s->cur_offset + off >= s->cur_frame_offset[i]
             && (s->frame_offset < s->cur_frame_offset[i] ||
               (!s->frame_offset && !s->next_frame_offset)) // first field/frame
-            //check is disabled  becausue mpeg-ts doesnt send complete PES packets
+            //check is disabled  because mpeg-ts doesnt send complete PES packets
             && /*s->next_frame_offset + off <*/  s->cur_frame_end[i]){
             s->dts= s->cur_frame_dts[i];
             s->pts= s->cur_frame_pts[i];