[MacPorts] #29368: upgrade to mercurial-1.8.3

[MacPorts]

#29368: upgrade to mercurial-1.8.3
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 Reporter:  easieste@…             |       Owner:  deric    
     Type:  update                 |      Status:  new      
 Priority:  Normal                 |   Milestone:           
Component:  ports                  |     Version:  1.9.2    
 Keywords:                         |        Port:  mercurial
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 Mercural-1.8.3 has been released.

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Ticket URL: <https://trac.macports.org/ticket/29368>
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