[gtk+] docs: adjust Since tags

[Matthias Clasen <matthiasc src gnome org>]

commit 8353754c17d33b8e26332c666dc3941c36619c51
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Oct 15 16:15:16 2010 -0400

    docs: adjust Since tags

 gtk/gtkcombobox.c |   11 ++++++-----
 1 files changed, 6 insertions(+), 5 deletions(-)
---
diff --git a/gtk/gtkcombobox.c b/gtk/gtkcombobox.c
index f25ee12..e59d4b4 100644
--- a/gtk/gtkcombobox.c
+++ b/gtk/gtkcombobox.c
@@ -924,7 +924,7 @@ gtk_combo_box_class_init (GtkComboBoxClass *klass)
     *
     * Whether the combo box has an entry.
     *
-    * Since: 3.0
+    * Since: 2.24
     */
    g_object_class_install_property (object_class,
                                     PROP_HAS_ENTRY,
@@ -940,7 +940,7 @@ gtk_combo_box_class_init (GtkComboBoxClass *klass)
     * The column in the combo box's model to associate with strings from the entry
     * if the combo was created with #GtkComboBox:has-entry = %TRUE.
     *
-    * Since: 3.0
+    * Since: 2.24
     */
    g_object_class_install_property (object_class,
                                     PROP_ENTRY_TEXT_COLUMN,
@@ -1220,6 +1220,7 @@ gtk_combo_box_get_property (GObject    *object,
       case PROP_ENTRY_TEXT_COLUMN:
 	g_value_set_int (value, priv->text_column);
 	break;
+
       default:
         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
         break;
@@ -6156,7 +6157,7 @@ gtk_combo_box_get_button_sensitivity (GtkComboBox *combo_box)
  *
  * Return Value: whether there is an entry in @combo_box.
  *
- * Since: 3.0
+ * Since: 2.24
  **/
 gboolean
 gtk_combo_box_get_has_entry (GtkComboBox *combo_box)
@@ -6176,7 +6177,7 @@ gtk_combo_box_get_has_entry (GtkComboBox *combo_box)
  *
  * @combo_box must be created with GtkComboBox:has-entry as %TRUE.
  *
- * Since: 3.0
+ * Since: 2.24
  */
 void
 gtk_combo_box_set_entry_text_column (GtkComboBox *combo_box,
@@ -6209,7 +6210,7 @@ gtk_combo_box_set_entry_text_column (GtkComboBox *combo_box,
  *
  * Return value: A column in the data source model of @combo_box.
  *
- * Since: 3.0
+ * Since: 2.24
  */
 gint
 gtk_combo_box_get_entry_text_column (GtkComboBox *combo_box)