- Update to gnuplot 5.4.4
* NEW plots can use arrow styles that specify "lc rgb variable"
* CHANGE make page layout of "set view map; splot" more like that of "plot"
- honor "set rmargin" and "set tmargin" Bug #2484
- display x2label and y2label Bug #2484
- revised placement of color box Bug #2484
- reconcile linked axis data and tic ranges Bug #2483
- apply "set key invert" to splot Bug #2381
* CHANGE cairo terminals: increase internal oversampling factor Bugs #2499 #2369
* CHANGE fig: restore terminal option "pointsmax " Bug #2509
* CHANGE always add a space between items in a "print" command Bug #2488
* CHANGE consistent ordering of input columns for "plot ... ps var pt var" Bug #2524
* CHANGE gnuplot -c script.gp A B -C ... will pass A B -C ... without interpretation
* CHANGE stricter error checks when promoting string to numeric value Bug #2527
* CHANGE report GPVAL_TERM_XMIN and friends as floating point values
* FIX handle combination of axis properties logscale + autoscale + reverse Bug #2347
* FIX mis-handled arguments at start-up of "gnuplot -c script arg1 ..." Bug #2493
* FIX windows: redirected output of printf() Bug #2490
* FIX allow variable point style and point type in plot "with yerrorbars"
* FIX plots "with labels point pt variable" were off-by-one in choosing point type
* FIX contour "with labels" from binary data
* FIX x/y fractional coordinate mouse readout for nonlinear axes Bug #2526
* FIX Support combination of "set surface explicit; set hidden3d" Bug #2521
- Use https
- Port patches
* gnuplot-4.6.0-fonts.diff
* gnuplot-4.6.0.dif
* gnuplot-gd.patch

- Update to gnuplot 5.4.4