[gtk+] widget: Refine docs a bit

[Timm Bäder <baedert src gnome org>]

commit 1a8b9e9180feb6bf0349726466132aa56a02453d
Author: Timm Bäder <mail baedert org>
Date:   Mon Jan 8 21:30:10 2018 +0100

    widget: Refine docs a bit

 gtk/gtkwidget.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index b0b53e1..1db61a6 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -12796,7 +12796,7 @@ gtk_widget_contains (GtkWidget  *widget,
  * @x: X coordinate to test, relative to @widget's origin
  * @y: Y coordinate to test, relative to @widget's origin
  *
- * Finds the descendant of widget (including widget itself) closest
+ * Finds the descendant of @widget (including @widget itself) closest
  * to the screen at the point (@x, @y). The point must be given in
  * widget coordinates, so (0, 0) is assumed to be the top left of
  * @widget's content area.