[MacPorts] #61237: Use SPDX license identifiers

[MacPorts]

#61237: Use SPDX license identifiers
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  Reporter:  ryandesign  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:              |
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Comment (by dbevans):

 I agree. The SPDX scheme seems to be more comprehensive than ours and
 gaining popularity elsewhere. Perl now has added a standardized (but
 optional) metadata element

 {{{
 "x_spdx_expression" : "Artistic-1.0-Perl OR GPL-1.0-or-later"
 }}}

 in addition to the existing

 {{{
     "license" : [
        "perl_5"
     ]
 }}}

 We might add something similar to our Portfile syntax.

-- 
Ticket URL: <https://trac.macports.org/ticket/61237#comment:3>
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