- Let patch gnuplot-5.2.0-texi2info.patch apply

- Update to gnuplot 5.2.5
* NEW "set pm3d depthorder base" sorts pm3d quadrangles by projecting to z=0
* NEW "set jitter vertical" displaces y coordinate rather than x coordinate
* NEW array size can be determined automatically from the initializer
* CHANGE place titles along x axis in plots with columnstacked histograms
* CHANGE equivalent slope constraint for mcs splines at both ends of the range
* CHANGE numerical arguments to "call" are stored in ARG1..ARGn as strings
* CHANGE numerical arguments to "call" are stored in ARGV[n] as complex
* CHANGE treat imaginary values plotted from a using spec as UNDEFINED (NaN)
* CHANGE allow "reset" between plots in a multiplot layout
* CHANGE Deprecate linux and vgagl terminals (to be removed in 5.3)
* CHANGE placement of axis and tic labels in 3D projections on to xz or yz plane
* CHANGE default to ./configure --without-wx-multithreading
* FIX parametric function plots did not work with logscale x (regression in 5.2.0-4)
* FIX polar mode "set trange" was assumed to use radians, now it tracks "set angle"
* FIX clip polar grid lines and ticks to x/y range limits
* FIX clipping of plot "with lines" when axes are nonlinear (regression from 5.0)
* FIX clipping of all elements in finanacebars/candlesticks/boxplots
* FIX clipping of 3D splot "with labels"
* FIX strange interaction of "noautoscale" with blank data lines
* FIX alignment of boxed text to center for eps/cairolatex
* FIX incompatibility of "pm3d depthorder" and rgb color taken from data column
* FIX aqua terminal font changes in enhanced text mode