Software error:

#!/usr/local/perl-5.8.7/bin/perl -T
use warnings;
use strict;
use CGI;
use CGI::Carp qw/fatalsToBrowser warningsToBrowser/;
my $query = new CGI;
print $query->start_html( 
        -head=>comment('commentary in the <head>'),
);
print $query->end_html;

##</code><code>##

<h1>Software error:</h1>
<pre>Undefined subroutine &amp;main::comment called at /usr/local/apache-1.3.33/cgi-bin/tryCommentInHead.cgi line 7.
</pre>
<p>
For help, please send mail to this site's webmaster, giving this error message 
and the time and date of the error.
 
</p>
[Mon Aug 14 15:00:08 2006] tryCommentInHead.cgi: Undefined subroutine &main::comment called at /usr/local/apache-1.3.33/cgi-bin/tryCommentInHead.cgi line 7.