[MacPorts] #12885: parse_environment chokes on empty variables

[MacPorts]

#12885: parse_environment chokes on empty variables
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  Reporter:  afb at macports.org  |       Owner:  macports-dev at lists.macosforge.org
      Type:  defect            |      Status:  closed                           
  Priority:  Normal            |   Milestone:  MacPorts base bugs               
 Component:  base              |     Version:  1.6.0                            
Resolution:  fixed             |    Keywords:                                   
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Changes (by jmpp at macports.org):

  * milestone:  => MacPorts base bugs

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Ticket URL: <http://trac.macosforge.org/projects/macports/ticket/12885#comment:3>
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