[MacPorts] #14073: libxml2 update to 2.6.31

[MacPorts]

#14073: libxml2 update to 2.6.31
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 Reporter:  nox at macports.org  |       Owner:  macports-tickets at lists.macosforge.org
     Type:  enhancement       |      Status:  new                                  
 Priority:  Normal            |   Milestone:  Port Updates                         
Component:  ports             |     Version:  1.6.0                                
 Keywords:                    |  
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 Changes:
  * Updated to 2.6.31.
  * Removed useless mandir and iconv configure arguments.

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Ticket URL: <http://trac.macosforge.org/projects/macports/ticket/14073>
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