[MacPorts] #29730: tortoisehg: add launcher icon and gui ssh-askpass

[MacPorts]

#29730: tortoisehg: add launcher icon and gui ssh-askpass
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 Reporter:  shiena.jp@…          |       Owner:  guido@…                 
     Type:  enhancement          |      Status:  new                     
 Priority:  Normal               |   Milestone:                          
Component:  ports                |     Version:                          
 Keywords:  haspatch             |        Port:  tortoisehg              
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Comment(by mk@…):

 Version 1.4.8 now supports non-square icons and would center the icon by
 default. Left, right, top, and bottom alignment are also possible.

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Ticket URL: <https://trac.macports.org/ticket/29730#comment:4>
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