[MacPorts] #56549: selfupdate loses error message returned by mportsync

[MacPorts]

#56549: selfupdate loses error message returned by mportsync
---------------------+----------------------------
  Reporter:  jmroot  |      Owner:  jmroot
      Type:  defect  |     Status:  closed
  Priority:  Normal  |  Milestone:  MacPorts 2.7.0
 Component:  base    |    Version:
Resolution:  fixed   |   Keywords:
      Port:          |
---------------------+----------------------------
Changes (by jmroot):

 * milestone:   => MacPorts 2.7.0


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Ticket URL: <https://trac.macports.org/ticket/56549#comment:5>
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