[gtk/wip/baedert/for-master] GdkEvent: Fix gdk_motion_event_get_history() annotations

[Timm Bäder <baedert src gnome org>]

commit b3463b8c18e2a29f406c3da53f1d22db107ceb1e
Author: Timm Bäder <mail baedert org>
Date:   Wed May 6 10:56:06 2020 +0200

    GdkEvent: Fix gdk_motion_event_get_history() annotations

 gdk/gdkevents.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gdk/gdkevents.c b/gdk/gdkevents.c
index f1cae55a4f..1c08df4c18 100644
--- a/gdk/gdkevents.c
+++ b/gdk/gdkevents.c
@@ -2827,8 +2827,8 @@ gdk_motion_event_new (GdkSurface      *surface,
  * Retrieves the history of the @event motion, as a list of time and
  * coordinates.
  *
- * Returns: (transfer container) (element-type GdkTimeCoord) (nullable): a list
- *   of time and coordinates
+ * Returns: (transfer full) (nullable): a list of time and coordinates
+ *   or %NULL if @out_n_coords is 0.
  */
 GdkTimeCoord *
 gdk_motion_event_get_history (GdkEvent *event,