[MacPorts] #55699: R @3.4.2: update to 3.4.3

[MacPorts]

#55699: R @3.4.2: update to 3.4.3
----------------------+---------------------------------
  Reporter:  kjellpk  |      Owner:
      Type:  update   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:  haspatch maintainer
      Port:  R        |
----------------------+---------------------------------
Changes (by kjellpk):

 * Attachment "R_Portfile.diff" added.


--
Ticket URL: <https://trac.macports.org/ticket/55699>
MacPorts <https://www.macports.org/>
Ports system for macOS