[MacPorts] #51310: ImageMagick: update to 7.x

[MacPorts]

#51310: ImageMagick: update to 7.x
--------------------------+------------------------
  Reporter:  mopihopi     |      Owner:  ryandesign
      Type:  update       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  ImageMagick  |
--------------------------+------------------------

Comment (by diekhans):

 Has anyone actually working on this?  It has been open for 7 years, and it
 is becoming a significant disadvantage to have an outdated version of an
 important package.

 I would contribute testing to any existing work to help move it forward.

-- 
Ticket URL: <https://trac.macports.org/ticket/51310#comment:45>
MacPorts <https://www.macports.org/>
Ports system for macOS