[MacPorts] #55827: sandbox-exec: execvp() of 'sh' failed: No such file or directory

[MacPorts]

#55827: sandbox-exec: execvp() of 'sh' failed: No such file or directory
----------------------+------------------------
  Reporter:  orcioni  |      Owner:
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  base     |    Version:
Resolution:           |   Keywords:  highsierra
      Port:           |
----------------------+------------------------

Comment (by orcioni):

 Can it be the warning about setting world read permission relevant ?

 {{{
 MacBookPro:~ sim$ sudo port selfupdate
 --->  Updating MacPorts base sources using rsync
 MacPorts base version 2.4.2 installed,
 MacPorts base version 2.4.2 downloaded.
 --->  Updating the ports tree
 Warning: Setting world read permissions on parts of the ports tree failed,
 need root?
 --->  MacPorts base is already the latest version

 The ports tree has been updated. To upgrade your installed ports, you
 should run
   port upgrade outdated
 }}}

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Ticket URL: <https://trac.macports.org/ticket/55827#comment:8>
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