[MacPorts] #16061: Update port.1 man page for clearer description of -f and the state file

[MacPorts]

#16061: Update port.1 man page for clearer description of -f and the state file
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 Reporter:  blb@…             |       Owner:  macports-tickets@…                   
     Type:  defect            |      Status:  new                                  
 Priority:  Normal            |   Milestone:  MacPorts Future                      
Component:  base              |     Version:  1.6.0                                
 Keywords:  port man page     |        Port:                                       
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Comment(by jmr@…):

 "allows actions from fetch through destroot to be run when the port is
 installed and up to date" no longer applied after r50490.

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Ticket URL: <http://trac.macports.org/ticket/16061#comment:4>
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