Bug#709533: libchart-perl: generate ugly popcon graph again

[Bill Allombert]

Package: libchart-perl
Version: 2.4.5-1
Severity: normal

Hello Debian Perl Group,

popcon.debian.org has been updated to wheezy and now
the chart are ugly: there are useless dots below the lines
and I did not manage to get rid of them.

I join a test case. You can compare the result with squeeze and sid there:
<http://people.debian.org/~ballombe/popcongraph/>

Cheers,
-- 
Bill. <ballo...@debian.org>

Imagine a large red swirl here. 

#! /usr/bin/perl -w

use Chart::LinesPoints;

@data=([2000..2020], [(18) x 21]);
  $obj=Chart::LinesPoints->new (600,400);
  $obj->set ('title' => "squeeze");
  $obj->set ('brush_size' => 3);
  $obj->set ('pt_size' => 3);
  $obj->set ('x_ticks' => 'vertical');
$obj->png ("foo.png",\@data);