[MacPorts] #40846: diffstat update to 1.57

[MacPorts]

#40846: diffstat update to 1.57
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 Reporter:  m.nacamura@…  |      Owner:  macports-tickets@…
     Type:  update        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.2.0
 Keywords:                |       Port:  diffstat
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Ticket URL: <https://trac.macports.org/ticket/40846>
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