[l2h] correction concerning cropping problems

[Tribulations Parallèles]

Hi everybody,

I have found this page:

http://www.danielclemente.com/linux/l2h.html

... and I have realized why there is blank space at the bottom of equation 
images. So my solution with multiple call to pnmcrop is not really 
interesting. I propose something slightly different (but dirty too):

$cmd .= "| $PNMCROP $croparg";

to replace by:

$cmd .= "| /usr/bin/convert -gravity south -chop 0x2 - - | $PNMCROP $croparg 
";

in pstoimg. It works well in Konqueror. In Firefox 1.5 beta 2, the html bug 
concerning align=middle has been corrected, so it works also very well.

My question concerning the quality of equation images stands by ;-)

Regards,

Julien