- Update to gnuplot 5.2.8
* CHANGE user-visible GPVAL_TERM_HCHAR GPVAL_TERM_VCHAR (help debug font issues)
* CHANGE placement of ylabel (compromise 5.2.7 and earlier versions) (Bug #2181)
* CHANGE make strstrt() aware of UTF8, e.g. strstrt("αβγ5", "5") returns 4
* FIX "set timestamp" from "save" must not include a justification (Bug #2178)
* FIX set cntrparam levels increment , for logscale z (Bug #2183)
* FIX character pointtypes should inherit plot coloring like normal pointtypes
* FIX bad autoscaling of linked y2 axis (Bug #2186)
* FIX prevent infinite loop from unbounded interation in a non-data plot command
* FIX dimensions reported by "stats matrix every" (Bug #2189)
* FIX extent of boxplot whiskers could be off by one point (Bug #2106)
* FIX mix unbounded iteration and functions in a single plot command (Bug #2201)
* FIX reverse history search with readline=builtin (Bug #2209)
* FIX qt: suppress off-by-one ysize (Bug #1759)
* FIX cairo: suppress off-by-one ysize (Bug #1759)
* FIX gd: apply alpha to brushstroke lines (Bug #2117)
* FIX tikz: fixes to accommodate lua 5.3 and newer pgf
* FIX wxt: ExportToFile widget disabled in persist mode (Bug #2185)
* FIX qt: handling of modifier keys (ctrl alt shift) for keyboard events
* FIX wxt: handling of modifier keys (ctrl alt shift) for keyboard events
* FIX fig: dashtype "solid" was not passed through correctly to transfig
* FIX gd: incorrect line spacing of multiline label (Bug #2215)