[MacPorts] #29705: upgrade to mercurial-1.8.4

[MacPorts]

#29705: upgrade to mercurial-1.8.4
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 Reporter:  easieste@…             |       Owner:  macports-tickets@…                   
     Type:  defect                 |      Status:  new                                  
 Priority:  Normal                 |   Milestone:                                       
Component:  ports                  |     Version:  1.9.2                                
 Keywords:  haspatch               |        Port:                                       
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 Patch to upgrade to mercurial-1.8.4.

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Ticket URL: <https://trac.macports.org/ticket/29705>
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