[gtk+] widget: Add Since annotation to gtk_widget_queue_allocate

[Timm Bäder <baedert src gnome org>]

commit 7116988bcbd14b129fc859044e802ec98371357a
Author: Timm Bäder <mail baedert org>
Date:   Tue May 10 12:31:56 2016 +0200

    widget: Add Since annotation to gtk_widget_queue_allocate

 gtk/gtkwidget.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index ccafd90..292a0d9 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -5649,6 +5649,8 @@ gtk_widget_set_alloc_needed (GtkWidget *widget);
  * reposition its contents.
  *
  * An example user of this function is gtk_widget_set_halign().
+ *
+ * Since: 3.20
  */
 void
 gtk_widget_queue_allocate (GtkWidget *widget)