[nongnu] elpa/gnuplot updated (d2c0355925 -> 821964c068)

[ELPA Syncer]

elpasync pushed a change to branch elpa/gnuplot.

      from  d2c0355925 CI: Fixes
       new  c0e8f1684e Stop using obsolete font lock variables
       new  821964c068 Define gnuplot-mode via define-derived-mode


Summary of changes:
 gnuplot.el | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)