[MacPorts] #16900: guide: return values for tcl extensions such as existsuser and adduser

[MacPorts]

#16900: guide: return values for tcl extensions such as existsuser and adduser
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  Reporter:  dweber at macports.org  |       Owner:  markd at macports.org     
      Type:  defect               |      Status:  new                    
  Priority:  Normal               |   Milestone:  Website & Documentation
 Component:  guide                |     Version:  1.6.0                  
Resolution:                       |    Keywords:                         
      Port:                       |  
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Comment(by blb at macports.org):

 existsuser description improved in r40978.

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Ticket URL: <http://trac.macports.org/ticket/16900#comment:1>
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