[MacPorts] #59430: lablgtk2: Update to 2.18.8

[MacPorts]

#59430: lablgtk2: Update to 2.18.8
------------------------+----------------------
 Reporter:  ryandesign  |      Owner:  (none)
     Type:  update      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:              |       Port:  lablgtk2
------------------------+----------------------
 According to [http://lablgtk.forge.ocamlcore.org the homepage], 2.18.8 is
 the latest release.

-- 
Ticket URL: <https://trac.macports.org/ticket/59430>
MacPorts <https://www.macports.org/>
Ports system for macOS