[MacPorts] #30955: Upgrade to mercurial-1.9.1

[MacPorts]

#30955: Upgrade to mercurial-1.9.1
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 Reporter:  easieste@…             |       Owner:  deric@…           
     Type:  defect                 |      Status:  new               
 Priority:  Normal                 |   Milestone:                    
Component:  ports                  |     Version:  2.0.1             
 Keywords:  haspatch               |        Port:  mercurial         
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 Attaching patch to upgrade to mercurial-1.9.1.

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Ticket URL: <https://trac.macports.org/ticket/30955>
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