[MacPorts] #51641: gnupg21 @2.1.12_0: enables TLS support opportunistically

[MacPorts]

#51641: gnupg21 @2.1.12_0: enables TLS support opportunistically
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  Reporter:  larryv@…  |      Owner:  ionic@…
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.3.99
Resolution:            |   Keywords:
      Port:  gnupg21   |
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Comment (by larryv@…):

 Enabling GnuTLS support might not actually not require `curl +gnutls`. I
 don’t know whether GnuPG cares what curl is using. Hopefully it doesn’t
 care at all, and we can avoid variant-dependency shenanigans.

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Ticket URL: <https://trac.macports.org/ticket/51641#comment:2>
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