[MacPorts] #64070: coreutils: update to latest release

[MacPorts]

#64070: coreutils: update to latest release
---------------------+-----------------------
 Reporter:  mascguy  |      Owner:  mascguy
     Type:  defect   |     Status:  assigned
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:  2.7.1
 Keywords:           |       Port:  coreutils
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 Upstream has released 9.0. Investigate potential issues and/or breaking
 changes first, though, given that it's a ".0" major new release.

 Also proactively collaborate with our PPC users, to ensure that it works
 everywhere [before officially updating the port].

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Ticket URL: <https://trac.macports.org/ticket/64070>
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