add size of encoded stream to the regression tests

Originally committed as revision 2918 to svn://svn.ffmpeg.org/ffmpeg/trunk

tests/regression.sh

@@ -96,6 +96,8 @@ do_ffmpeg()
     do_md5sum $f >> $logfile
     if [ $f = $raw_dst ] ; then
         $tiny_psnr $f $raw_ref >> $logfile
+    else
+        wc -c $f >> $logfile
     fi
     expr "`cat $datadir/bench.tmp`" : '.*utime=\(.*s\)' > $datadir/bench2.tmp
     echo `cat $datadir/bench2.tmp` $f >> $benchfile