[MacPorts] #28385: graphics/libpng upgrade version to 1.5.1

[MacPorts]

#28385: graphics/libpng upgrade version to 1.5.1
----------------------------------------+-----------------------------------
 Reporter:  rmstonecipher@…             |       Owner:  rmstonecipher@…           
     Type:  update                      |      Status:  new                       
 Priority:  Normal                      |   Milestone:                            
Component:  ports                       |     Version:  1.9.2                     
 Keywords:                              |        Port:  libpng                    
----------------------------------------+-----------------------------------
 libpng 1.5.1 has been released.[[br]]
 Attached is a list of other ports which currently link against
 libpng14.dylib and will need their revisions incremented to link against
 libpng15.dylib.[[br]]
 If other ports not in the list fit this description, please list them in
 this ticket.[[br]]
 In roughly one week I will commit the update to libpng as well as revision
 bumps to all ports in the attached list any any others listed in replies
 to this ticket.[[br]][[br]]
 Cheers,[[br]]
 Ryan Stonecipher

-- 
Ticket URL: <https://trac.macports.org/ticket/28385>
MacPorts <http://www.macports.org/>
Ports system for Mac OS