[gimp] libgimp: forgot to deprecate gimp_drawable_preview_draw_region()

[Michael Natterer <mitch src gnome org>]

commit 382fe030cea4550c8582a97db95e555422fefb4f
Author: Michael Natterer <mitch gimp org>
Date:   Fri Jun 28 19:31:07 2019 +0200

    libgimp: forgot to deprecate gimp_drawable_preview_draw_region()

 libgimp/gimpdrawablepreview.h | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/libgimp/gimpdrawablepreview.h b/libgimp/gimpdrawablepreview.h
index 6b06033e02..a2c7b98230 100644
--- a/libgimp/gimpdrawablepreview.h
+++ b/libgimp/gimpdrawablepreview.h
@@ -70,6 +70,7 @@ GType          gimp_drawable_preview_get_type             (void) G_GNUC_CONST;
 GtkWidget    * gimp_drawable_preview_new_from_drawable_id (gint32               drawable_ID);
 gint32         gimp_drawable_preview_get_drawable_id      (GimpDrawablePreview *preview);
 
+GIMP_DEPRECATED_FOR(gimp_preview_draw_buffer)
 void           gimp_drawable_preview_draw_region          (GimpDrawablePreview *preview,
                                                            const GimpPixelRgn  *region);