[gegl] voronoi-diagram: update reference hash

[Ell <ell src gnome org>]

commit fa947c49198e163a7a85f48ae7a5c6def9c66df4
Author: Ell <ell_se yahoo com>
Date:   Sun Nov 25 16:00:16 2018 -0500

    voronoi-diagram: update reference hash

 operations/workshop/voronoi-diagram.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/operations/workshop/voronoi-diagram.cc b/operations/workshop/voronoi-diagram.cc
index aaf87ffd1..a33ab1979 100644
--- a/operations/workshop/voronoi-diagram.cc
+++ b/operations/workshop/voronoi-diagram.cc
@@ -527,7 +527,7 @@ gegl_op_class_init (GeglOpClass *klass)
                        "noise-hurl pct-random=0.1 "
                        "crop width=256 height=256 "
                        "voronoi-diagram mask=black",
-    "reference-hash",  "0731590098ed020b5a9e7a71b71735dc",
+    "reference-hash",  "983f0fd7b29e1ac36721038817f4de74",
     "description",     _("Paints each non-seed pixel with the color of "
                          "the nearest seed pixel."),
     NULL);