[gtk+] Document gtk_application_get_window_by_id

[Matthias Clasen <matthiasc src gnome org>]

commit cfb6da9b55768f400a11d460a04506bda200217a
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Sep 23 21:15:27 2012 -0400

    Document gtk_application_get_window_by_id

 gtk/gtkapplication.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkapplication.c b/gtk/gtkapplication.c
index 334cb9f..4e9de42 100644
--- a/gtk/gtkapplication.c
+++ b/gtk/gtkapplication.c
@@ -896,7 +896,9 @@ gtk_application_get_windows (GtkApplication *application)
  * @application: a #GtkApplication
  * @id: an identifier number
  *
- * Returns: (transfer none): the #GtkApplicationWindow with ID @id, or
+ * Returns the #GtkApplicationWindow with the given ID.
+ *
+ * Returns: (transfer none): the window with ID @id, or
  *   %NULL if there is no window with this ID
  *
  * Since: 3.6