[MacPorts] #56917: py-gnureadline: update to 6.3.8

[MacPorts]

#56917: py-gnureadline: update to 6.3.8
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  Reporter:  jmroot          |      Owner:  stromnov
      Type:  update          |     Status:  assigned
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:
Resolution:                  |   Keywords:  haspatch
      Port:  py-gnureadline  |
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Changes (by jmroot):

 * Attachment "Portfile.diff" added.


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Ticket URL: <https://trac.macports.org/ticket/56917>
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