[MacPorts] #32133: gnuplot: update to 4.4.4

[MacPorts]

#32133: gnuplot: update to 4.4.4
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 Reporter:  jpo@…             |       Owner:  macports-tickets@…                   
     Type:  update            |      Status:  new                                  
 Priority:  Normal            |   Milestone:                                       
Component:  ports             |     Version:  2.0.3                                
 Keywords:  haspatch          |        Port:  gnuplot                              
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Comment(by jpo@…):

 Would it also be possible to build gnuplot with luaterm and pangocairo
 support enabled (default_variants +luaterm +pangocairo)?

 The first variant - luaterm - enables the lua and tikz terminals, while
 the second one - pangocairo - enables the pdfcairo and pngcairo terminals
 (better compability with linux systems where the pdf terminal isn't
 available due to the pdflib-lite license problems).

 /jpo

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Ticket URL: <https://trac.macports.org/ticket/32133#comment:1>
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