[gimp] app: fix a lingering old gimp:softlight-mode

[Øyvind Kolås <ok src gnome org>]

commit f9aeff567067789e6403c2b77030346d04921c3b
Author: Øyvind Kolås <pippin gimp org>
Date:   Wed Jan 11 15:17:10 2017 +0100

    app: fix a lingering old gimp:softlight-mode

 app/gegl/gimp-gegl-nodes.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/app/gegl/gimp-gegl-nodes.c b/app/gegl/gimp-gegl-nodes.c
index 0028762..0850dc8 100644
--- a/app/gegl/gimp-gegl-nodes.c
+++ b/app/gegl/gimp-gegl-nodes.c
@@ -180,7 +180,7 @@ gimp_gegl_mode_node_set_mode (GeglNode      *node,
       break;
 
     case GIMP_LAYER_MODE_OVERLAY_LEGACY:
-      operation = "gimp:softlight-mode";
+      operation = "gimp:softlight-legacy";
       break;
 
     case GIMP_LAYER_MODE_DIFFERENCE: