[MacPorts] #62370: cannot paste lines into Gnuplot

[MacPorts]

#62370: cannot paste lines into Gnuplot
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 Reporter:  fpeos   |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:
 Keywords:          |       Port:
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 Since I upgraded to MacOS Big Sur, I am no longer able to paste a few
 command lines from a terminal or Aquamacs into Gnuplot. It does not
 recognize the newline character and falsely tries to interpret all lines
 as a single commands:

 set xlabel "x"
 set ylabel "y"
 plot "tmp.txt" u 4:6 w p

 When it paste these lines into Gunplot's prompt, they also show up white
 on black.

 I updated to macOS 11.2.2., manually reinstalled Ports and Gnuplot, and
 followed the directions under ticket #62364 but it still does not work.
 Since I cut and paste a few lines often, a fix would be appreciated.
 Thanks for your time.

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Ticket URL: <https://trac.macports.org/ticket/62370>
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