[MacPorts] #21069: 'port upgrade --force installed ' fails on help2man

[MacPorts]

#21069: 'port upgrade --force installed ' fails on help2man
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 Reporter:  permezel@…        |       Owner:  macports-tickets@…                   
     Type:  defect            |      Status:  new                                  
 Priority:  Normal            |   Milestone:                                       
Component:  ports             |     Version:  1.8.0                                
 Keywords:                    |        Port:  help2man                             
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Comment(by ryandesign@…):

 The Migration page used to offer a second upgrade method involving "sudo
 port upgrade --force installed". Since that caused so many problems, that
 option was removed from the documentation, and we now only mention the
 more involved manual method because of its greater probability for
 success.

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Ticket URL: <http://trac.macports.org/ticket/21069#comment:11>
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