[gegl] linear-sinusoid: add reference hash

[Øyvind Kolås <ok src gnome org>]

commit e001b34ba257fbfd9aa722fe78b556a562a5a07e
Author: Øyvind Kolås <pippin gimp org>
Date:   Sat Oct 14 03:31:33 2017 +0200

    linear-sinusoid: add reference hash

 operations/workshop/linear-sinusoid.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/operations/workshop/linear-sinusoid.c b/operations/workshop/linear-sinusoid.c
index fef0a31..221b7ae 100644
--- a/operations/workshop/linear-sinusoid.c
+++ b/operations/workshop/linear-sinusoid.c
@@ -297,6 +297,7 @@ gegl_op_class_init (GeglOpClass *klass)
     "title",              _("Linear Sinusoid"),
     "categories",         "render",
     "position-dependent", "true",
+    "reference-hash",     "7b66b312f7f3c8000df1f782e23913b3",
     "license",            "GPL3+",
     "description",        _("Generate a linear sinusoid pattern"),
     NULL);