[gtk+] label: Fix memleak

[Benjamin Otte <otte src gnome org>]

commit 5d011386a69aa59d6eda1e3ef32005efd831c179
Author: Carl-Anton Ingmarsson <ca ingmarsson gmail com>
Date:   Tue Mar 12 20:22:18 2013 +0100

    label: Fix memleak
    
    Caused by recent refactoring in e09957a47da9425cc26d1b33cb4e9cc3e92e9ac7

 gtk/gtklabel.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtklabel.c b/gtk/gtklabel.c
index 0eac38d..b228d05 100644
--- a/gtk/gtklabel.c
+++ b/gtk/gtklabel.c
@@ -1982,7 +1982,10 @@ gtk_label_set_text_internal (GtkLabel *label,
   GtkLabelPrivate *priv = label->priv;
 
   if (g_strcmp0 (priv->text, str) == 0)
-    return;
+    {
+      g_free (str);
+      return;
+    }
 
   g_free (priv->text);
   priv->text = str;