[gtksourceview] UndoManager: simplify use of g_queue_insert_before()

[Sébastien Wilmet <swilmet src gnome org>]

commit da48829adc339a6751be29f102d0c6cdc687e61a
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Mon Nov 10 20:41:20 2014 +0100

    UndoManager: simplify use of g_queue_insert_before()
    
    Requires a recent GLib.

 README                                      |    2 +-
 configure.ac                                |    2 +-
 gtksourceview/gtksourceundomanagerdefault.c |   14 +++-----------
 3 files changed, 5 insertions(+), 13 deletions(-)
---
diff --git a/README b/README
index b85c98d..0e3da5c 100644
--- a/README
+++ b/README
@@ -29,7 +29,7 @@ the GNU Lesser General Public License.
 Installation
 ============
 
-GtkSourceView requires GLib >= 2.38, GTK+ >= 3.15.0 and libxml2 >= 2.6.
+GtkSourceView requires GLib >= 2.43.1, GTK+ >= 3.15.0 and libxml2 >= 2.6.
 
 Simple install procedure:
 
diff --git a/configure.ac b/configure.ac
index e54ecd4..1b0a8f2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -35,7 +35,7 @@ GSV_LT_VERSION="$GSV_LT_CURRENT:$GSV_LT_REVISION:$GSV_LT_AGE"
 AC_SUBST(GSV_LT_VERSION)
 
 # Dependencies
-GLIB_REQUIRED_VERSION=2.38
+GLIB_REQUIRED_VERSION=2.43.1
 GTK_REQUIRED_VERSION=3.15.0
 LIBXML_REQUIRED_VERSION=2.6.0
 GLADE_UI_REQUIRED=3.9
diff --git a/gtksourceview/gtksourceundomanagerdefault.c b/gtksourceview/gtksourceundomanagerdefault.c
index 8880311..7e2b238 100644
--- a/gtksourceview/gtksourceundomanagerdefault.c
+++ b/gtksourceview/gtksourceundomanagerdefault.c
@@ -380,17 +380,9 @@ insert_new_action_group (GtkSourceUndoManagerDefault *manager)
 {
        ActionGroup *group = action_group_new ();
 
-       if (manager->priv->location != NULL)
-       {
-               g_queue_insert_before (manager->priv->action_groups,
-                                      manager->priv->location,
-                                      group);
-       }
-       else
-       {
-               g_queue_push_tail (manager->priv->action_groups,
-                                  group);
-       }
+       g_queue_insert_before (manager->priv->action_groups,
+                              manager->priv->location,
+                              group);
 
        if (manager->priv->has_saved_location &&
            manager->priv->saved_location == manager->priv->location)