[racket] Problem with hline in

Hi All,

Experimenting with  slideshow/pict  I noticed that the lines
produced by hline doesn't begin and end the same way.

    > (require slideshow/pict)
    > (scale (hline 30 1) 15)
    <line>

The start of the line is rectangular where as the end is rounded.
See attached image.

Should I change the pen type to get a line that is rounded in both ends?
If so, how?

--
Jens Axel Søgaard
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