in reply to padding/substr quirk

Operator precedence:
Your expression gets parsed as 

("0" . localtime->mon()) + 1

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which evaluates to "1". Putting parentheses around the expressions helps :

'0' . (localtime->mon +1)

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perl -MHTTP::Daemon -MHTTP::Response -MLWP::Simple -e ' ;    # The  
$d = new HTTP::Daemon and fork and getprint $d->url and exit;#spider
($c = $d->accept())->get_request(); $c->send_response( new   #in the
HTTP::Response(200,$_,$_,qq(Just another Perl hacker\n))); ' #  web

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In Section Seekers of Perl Wisdom