[MacPorts] #50455: opam @1.2.1 Update to 1.2.2

[MacPorts]

#50455: opam @1.2.1 Update to 1.2.2
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 Reporter:  michipili@…  |      Owner:  macports-tickets@…
     Type:  update       |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.3.4
 Keywords:               |       Port:
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 This is to update opam to its latest stable version, 1.2.2.

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Ticket URL: <https://trac.macports.org/ticket/50455>
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