[easytag] Show the rename and save confirmation checkbutton

[David King <davidk src gnome org>]

commit 0b1ce79e772ca43651040dc8b1122463839428ac
Author: David King <amigadave amigadave com>
Date:   Fri Jan 11 16:36:23 2013 +0000

    Show the rename and save confirmation checkbutton
    
    The check buttons were added to the message area of the GtkMessageDialog
    but they were not shown.

 src/easytag.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/easytag.c b/src/easytag.c
index 5990060..d3c2b73 100644
--- a/src/easytag.c
+++ b/src/easytag.c
@@ -2596,6 +2596,7 @@ gint Save_File (ET_File *ETFile, gboolean multiple_files, gboolean force_saving_
                 message_area = gtk_message_dialog_get_message_area(GTK_MESSAGE_DIALOG(msgdialog));
                 msgdialog_check_button = gtk_check_button_new_with_label(_("Repeat action for the remaining files"));
                 gtk_container_add(GTK_CONTAINER(message_area),msgdialog_check_button);
+                gtk_widget_show (msgdialog_check_button);
                 gtk_dialog_add_buttons(GTK_DIALOG(msgdialog),GTK_STOCK_DISCARD,GTK_RESPONSE_NO,GTK_STOCK_CANCEL,GTK_RESPONSE_CANCEL,GTK_STOCK_SAVE,GTK_RESPONSE_YES,NULL);
                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(msgdialog_check_button), TRUE); // Checked by default
             }else
@@ -2707,6 +2708,7 @@ gint Save_File (ET_File *ETFile, gboolean multiple_files, gboolean force_saving_
                 message_area = gtk_message_dialog_get_message_area(GTK_MESSAGE_DIALOG(msgdialog));
                 msgdialog_check_button = gtk_check_button_new_with_label(_("Repeat action for the remaining files"));
                 gtk_container_add(GTK_CONTAINER(message_area),msgdialog_check_button);
+                gtk_widget_show (msgdialog_check_button);
                 gtk_dialog_add_buttons(GTK_DIALOG(msgdialog),GTK_STOCK_DISCARD,GTK_RESPONSE_NO,GTK_STOCK_CANCEL,GTK_RESPONSE_CANCEL,GTK_STOCK_SAVE,GTK_RESPONSE_YES,NULL);
                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(msgdialog_check_button), TRUE); // Checked by default
             }else