[MacPorts] #49275: port -v selfupdate failed on El Capitan

[MacPorts]

#49275: port -v selfupdate failed on El Capitan
------------------------+--------------------------------
 Reporter:  my@…        |      Owner:  macports-tickets@…
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  base        |    Version:  2.3.4
 Keywords:  el capitan  |       Port:
------------------------+--------------------------------
 It was good yesterday. But it fails today, yet I have tried many times.
 Even reinstalling the MacPorts base cannot help.

 {{{
 $ sudo port -v selfupdate
 Password:
 --->  Updating MacPorts base sources using rsync
 receiving file list ... done

 sent 36 bytes  received 69 bytes  5.12 bytes/sec
 total size is 27013120  speedup is 257267.81
 receiving file list ... done

 sent 36 bytes  received 76 bytes  7.23 bytes/sec
 total size is 512  speedup is 4.57
 Error: Failed to verify signature for MacPorts source!
 To report a bug, follow the instructions in the guide:
     http://guide.macports.org/#project.tickets
 Error: /opt/local/bin/port: port selfupdate failed: Failed to verify
 signature for MacPorts source!
 }}}

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Ticket URL: <https://trac.macports.org/ticket/49275>
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