[MacPorts] #41253: Update ruby-build to release 20131028

[MacPorts]

#41253: Update ruby-build to release 20131028
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 Reporter:  nicholas@…  |      Owner:  macports-tickets@…
     Type:  update      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.2.1
 Keywords:              |       Port:  ruby-build
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Ticket URL: <https://trac.macports.org/ticket/41253>
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