gdkdisplaymanager: Add missing nullable to display name

diff --git a/gdk/gdkdisplaymanager.c b/gdk/gdkdisplaymanager.c
index 6a767a5706dc30e16b20d9caf306e6ac1e6fcb40..0f43e9cff7031f24a207340e34251d5414ff1fcf 100644 (file)
--- a/gdk/gdkdisplaymanager.c
+++ b/gdk/gdkdisplaymanager.c
@@ -369,7 +369,7 @@ gdk_display_manager_list_displays (GdkDisplayManager *manager)
 /**
  * gdk_display_manager_open_display:
  * @manager: a `GdkDisplayManager`
- * @name: the name of the display to open
+ * @name: (nullable): the name of the display to open
  *
  * Opens a display.
  *