ezmlm-mhonarc script does not work !!!

Hi,

I found the script posted by Earl Hood for automatically creating
a directory year-month in the archive.

I make a modification to the script.

ORIGINAL:
=========
    mhonarc::process_input(
 '-add',
 '-quiet',
 '-outdir, $dir'
    ) ? exit(0) : exit($mhonarc::CODE);

AFTER CHANGE:
=============
    mhonarc::process_input(
 '-add',
 '-quiet',
 '-rcfile', /etc/ezmlm/list.rc,
 '-definevars', "MAIN-TITLE='List Archive'",
 '-outdir', $dir
    ) ? exit(0) : exit($mhonarc::CODE);


I'm not quite sure if the syntax is right. All I know is that
script does not work. I'm not a perl programmer. so I'm not sure
where the mistake is.  Also, Where does mhonarc store it's error
messages, if it does store it, or send the error via email to
anyone??

Thanks.