[MacPorts] #67760: graphviz 8.1.0: does not support -Tvt100

[MacPorts]

#67760: graphviz 8.1.0: does not support -Tvt100
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 Reporter:  akimd   |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.8.1
 Keywords:          |       Port:  graphviz
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 Hi!

 According to the release notes
 (https://gitlab.com/graphviz/graphviz/-/blob/main/CHANGELOG.md#810-2023-07-06),
 dot should support -Tvt100, but the version from the port does not.  I
 didn't see if a variant was needed, apologies if I missed something.

 Cheers!

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Ticket URL: <https://trac.macports.org/ticket/67760>
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