[MacPorts] #44103: Coin: update information in the portfile, add livecheck, avoid /usr/X11R

[MacPorts]

#44103: Coin: update information in the portfile, add livecheck, avoid /usr/X11R
---------------------+-------------------
 Reporter:  mojca@…  |      Owner:  css@…
     Type:  defect   |     Status:  new
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:
 Keywords:           |       Port:  Coin
---------------------+-------------------
 See comment:16:ticket:41786 and comment:18:ticket:41786.

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Ticket URL: <https://trac.macports.org/ticket/44103>
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