[MacPorts] #59697: portdmg.test and portmdmg.test tests fail on Catalina

[MacPorts]

#59697: portdmg.test and portmdmg.test tests fail on Catalina
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  Reporter:  ryandesign  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  base        |    Version:  2.6.2
Resolution:              |   Keywords:  catalina
      Port:              |
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Comment (by kurthindenburg):

 The test sets:
 {{{
 set os.major 10
 }}}
 so I can't check that.  What's the reason for setting that in a test?

 This should be a simple 'if {${os.major} < 19}' then do the internet-
 enable command.

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Ticket URL: <https://trac.macports.org/ticket/59697#comment:2>
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