well, I found something interesting here when this script is ran with -W option :

<%23>: perl -W sud.pl
Reference found where even-sized list expected at /apps/Perl/lib/site_
+perl/5.8.8/Sudo.pm line 85.
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Sudo.pm seems to be fine and I never got any error messages during this package installation. Line #85 looks something like this:

    83          if ($_sudo_stat_[5] != 0 )
    84              {
    85                %ret = {
    86                        'error' => (sprintf 'Error: the sudo bin
+ary "%s" is not set to group id = 0',$sudo)
    87                       };
    88                return \%ret;
    89              }
[download]