1.1 --- a/examples/image_convert.sh.example	Sun Dec 12 11:53:00 2010 +0100
     1.2 +++ b/examples/image_convert.sh.example	Sun Dec 12 12:15:17 2010 +0100
     1.3 @@ -55,7 +55,7 @@
     1.4  # 'chroma subsampling mode' mjpegtools >= 1.8.0
     1.5  #
     1.6  SUBSAMPLINGMODE=""
     1.7 -if ppmtoy4m -h | egrep -q "'420mpeg2'"; then
     1.8 +if ppmtoy4m -h 2>&1 | egrep -q "'420mpeg2'"; then
     1.9      SUBSAMPLINGMODE="-S 420mpeg2"
    1.10  fi
    1.11  #