[gegl] saturation: improve colorspace ui label

[Øyvind "pippin" Kolås <ok src gnome org>]

commit 4429cc0ca6d61fc24d3b19e93cd6e903152bbf05
Author: Øyvind Kolås <pippin gimp org>
Date:   Thu Jul 4 15:02:41 2019 +0200

    saturation: improve colorspace ui label

 operations/common/saturation.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/operations/common/saturation.c b/operations/common/saturation.c
index bfe4fdf18..4c5ebc44d 100644
--- a/operations/common/saturation.c
+++ b/operations/common/saturation.c
@@ -34,8 +34,8 @@ property_double (scale, _("Scale"), 1.0)
     value_range (0.0, 10.0)
     ui_range (0.0, 2.0)
 
-property_enum (colorspace, _("Color Space"),
-    description(_("Which color space to do interpolation in."))
+property_enum (colorspace, _("Interpolation Color Space"),
+    description(_("Set at Linear data if uncertain, the CIE based spaces might introduce hue shifts."))
     GeglSaturationType, gegl_saturation_type,
     GEGL_SATURATION_TYPE_CIE_LAB)