[libgweather/bilelmoussaoui/annotations] location: next_child's child param can be nullable

[Bilal Elmoussaoui <bilelmoussaoui src gnome org>]

commit 58e0ee5c74119406c7077c4f8df1b4e2350e9821
Author: Bilal Elmoussaoui <bil elmoussaoui gmail com>
Date:   Thu Feb 11 16:23:42 2021 +0000

    location: next_child's child param can be nullable
    
    This adds a missing annotation as otherwise the API isn't very usable from other languages like Vala

 libgweather/gweather-location.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/libgweather/gweather-location.c b/libgweather/gweather-location.c
index c15e1190..48e2ff77 100644
--- a/libgweather/gweather-location.c
+++ b/libgweather/gweather-location.c
@@ -543,7 +543,7 @@ gweather_location_get_parent (GWeatherLocation *loc)
 /**
  * gweather_location_next_child:
  * @loc: a #GWeatherLocation
- * @child: (transfer full): The child
+ * @child: (transfer full) (nullable): The child
  *
  * Allows iterating all children. Pass %NULL to get the first child,
  * and any child to get the next one. Note that the reference to @child