[MacPorts] #47865: upgrade claws-mail to 3.11.1

[MacPorts]

#47865: upgrade claws-mail to 3.11.1
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 Reporter:  perry@…              |      Owner:  macports-tickets@…
     Type:  update               |     Status:  new
 Priority:  Normal               |  Milestone:
Component:  ports                |    Version:  2.3.3
 Keywords:  haspatch maintainer  |       Port:  cla
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 Enclosed find patches to Portfile and a .diff file I received from one of
 the claws-mail developers to deal with a build bug that has been fixed in
 the head of their git repository. The .diff file belongs under "files".

 I'm the port maintainer.

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Ticket URL: <https://trac.macports.org/ticket/47865>
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