[MacPorts] #15488: wrap text to terminal width

[MacPorts]

#15488: wrap text to terminal width
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  Reporter:  ryandesign at macports.org  |       Owner:  raimue at macports.org
      Type:  defect                   |      Status:  assigned           
  Priority:  Normal                   |   Milestone:  MacPorts base bugs 
 Component:  base                     |     Version:  1.7.0              
Resolution:                           |    Keywords:                     
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Comment (by raimue at macports.org):

 `stty -f /dev/stdout size` could be a possible solution. Also, I should
 look into adding a wrapper for isatty(3) to pextlib1.0.

 Linking against ncurses to get this from terminfo could help as well, but
 I am not very confident with introducing new dependencies for MacPorts
 itself.

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Ticket URL: <http://trac.macports.org/ticket/15488#comment:4>
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