[gtk/matthiasc/for-master] Some minor documentation fixes

[Matthias Clasen <matthiasc src gnome org>]

commit 6fee3acff24ee1fa3071711c85f7737fba4bfd1e
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Apr 18 22:58:07 2020 -0400

    Some minor documentation fixes

 gtk/gtkwidget.h | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/gtk/gtkwidget.h b/gtk/gtkwidget.h
index f71c2bbd45..dbd95ac58f 100644
--- a/gtk/gtkwidget.h
+++ b/gtk/gtkwidget.h
@@ -186,11 +186,9 @@ struct _GtkWidget
  *   %FALSE, and just grabs the focus if @group_cycling is %TRUE.
  * @grab_focus: Causes @widget to have the keyboard focus for the
  *   #GtkWindow it’s inside.
- * @focus:
+ * @focus: Vfunc for gtk_widget_child_focus()
  * @move_focus: Signal emitted when a change of focus is requested
  * @keynav_failed: Signal emitted if keyboard navigation fails.
- * @popup_menu: Signal emitted whenever a widget should pop up a
- *   context menu.
  * @get_accessible: Returns the accessible object that describes the
  *   widget to an assistive technology.
  * @can_activate_accel: Signal allows applications and derived widgets
@@ -201,7 +199,7 @@ struct _GtkWidget
  *   widget; or emitted when widget got focus in keyboard mode.
  * @compute_expand: Computes whether a container should give this
  *   widget extra space when possible.
- * @css_changed: Signal emitted when the CSS used by widget was changed. Widgets
+ * @css_changed: Vfunc called when the CSS used by widget was changed. Widgets
  *   should then discard their caches that depend on CSS and queue resizes or
  *   redraws accordingly. The default implementation will take care of this for
  *   all the default CSS properties, so implementations must chain up.