[gtk+] Fix a small memory leak

[Matthias Clasen <matthiasc src gnome org>]

commit 7fbf6a67a2204a6c891fed251811c6d60b9e6746
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Feb 19 00:31:40 2014 -0500

    Fix a small memory leak
    
    GtkPrintUnixDialog was leaking a GFile.
    Spotted by Christian Persch in
    https://bugzilla.gnome.org/show_bug.cgi?id=724631

 gtk/gtkprintunixdialog.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkprintunixdialog.c b/gtk/gtkprintunixdialog.c
index 170f368..f846a18 100644
--- a/gtk/gtkprintunixdialog.c
+++ b/gtk/gtkprintunixdialog.c
@@ -641,10 +641,14 @@ error_dialogs (GtkPrintUnixDialog *print_dialog,
 
                   if (g_file_query_exists (file, NULL))
                     {
+                      GFile *parent;
+
                       toplevel = get_toplevel (GTK_WIDGET (print_dialog));
 
                       basename = g_file_get_basename (file);
-                      dirname = g_file_get_parse_name (g_file_get_parent (file));
+                      parent = g_file_get_parent (file);
+                      dirname = g_file_get_parse_name (parent);
+                      g_object_unref (parent);
 
                       dialog = gtk_message_dialog_new (toplevel,
                                                        GTK_DIALOG_MODAL |