[gimp] zoompreview: Add (array) gir annotation

[Niels De Graef <nielsdg src gnome org>]

commit f23ada8c77628486d336d7b4364d98496c2ec720
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Fri May 8 16:34:23 2020 +0200

    zoompreview: Add (array) gir annotation

 libgimp/gimpzoompreview.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/libgimp/gimpzoompreview.c b/libgimp/gimpzoompreview.c
index 6d688c0c1e..ea1648ca2d 100644
--- a/libgimp/gimpzoompreview.c
+++ b/libgimp/gimpzoompreview.c
@@ -884,8 +884,8 @@ gimp_zoom_preview_get_factor (GimpZoomPreview *preview)
  * This function also allow to get the current width, height and bpp of the
  * #GimpZoomPreview.
  *
- * Returns: newly allocated data that should be released using g_free()
- *               when it is not any longer needed
+ * Returns: (array): newly allocated data that should be released using g_free()
+ *                   when it is not any longer needed
  *
  * Since: 2.4
  */