- Update to gnuplot 5.4.2
* NEW in "using" context, $# means "number of columns in current data line"
* NEW define on program entry: I = sqrt(-1) = {0.,1.}
* NEW support input data that uses epidemiological date-week formats
* NEW optional fillcolor for "set key opaque"
* NEW provide and document use of a plugin to provide uigamma function
* CHANGE much improved domain and precision for igamma function
* CHANGE generate only one key entry per multi-dataset input file Bug #2380
* CHANGE (Windows): attempt to convert unicode on command line to UTF-8
* CHANGE clip `with image` to plot boundary in 2D plots
* CHANGE In gprintf format "%c", add no space for a null prefix Bug #2266
* CHANGE Make auto-placement of left border less sensitive to plot size Bug #2415
* FIX time formats %U %W Bug #2390
* FIX cairo terminals: Do not lose font info during multi-line enhanced text
* FIX left-justification of titles in splot with user-specified key position
* FIX cairo terminals (Windows): ignore "text scaling" from user screen settings
* FIX win: instabilities associated with changing window size Bug #2301 #2304
* FIX pm: better mousing and font handling
* FIX qt: prevent zombie gnuplot_qt process Bug #2188
* FIX clipping of filled polygons that have only 1 or 2 vertices Bug #2400
* FIX "set tics front" unexpectedly made all grid lines invisible
* FIX more terminals support requested linewidth for textbox borders
* FIX indexing of multiple matrix data sets in a single input file
* FIX do not inject extra '\n' into input stream after 'set term' Bug #2292
- Change offset of patches
* gnuplot-4.6.0-fonts.diff
* gnuplot-4.6.0.dif
* gnuplot-gd.patch

- Update to gnuplot 5.4.2