[MacPorts] #28276: arb: Upgrade to 5.2

[MacPorts]

#28276: arb: Upgrade to 5.2
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 Reporter:  matt.cottrell@…       |       Owner:  macports-tickets@…                   
     Type:  update                |      Status:  new                                  
 Priority:  Normal                |   Milestone:                                       
Component:  ports                 |     Version:  1.9.2                                
 Keywords:  libpng                |        Port:  arb                                  
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Comment(by matt.cottrell@…):

 Replying to [comment:29 ryandesign@…]:
 > However, before we update to 5.2, I'd like to fix the config file
 issue...

 Uploaded Portfile.5.diff which uses post-activate to avoid clobbering the
 config file.  Useful information for the user about these config files
 added to the notes.

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Ticket URL: <https://trac.macports.org/ticket/28276#comment:30>
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