[metapost] polygonal pen bugs

[Akira Kakuto]

> the reason I moved this discussion to the list is that ...

I attach an output by the old MetaPost 0.641, 641.pdf,
for comparison.

Best regards,
Akira KAKUTO
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 641.pdf
Type: application/pdf
Size: 12940 bytes
Desc: not available
URL: <http://tug.org/pipermail/metapost/attachments/20130619/282c837b/attachment.pdf>