Description: Provide format specifier for hardening support.

--- gpe-calendar-0.92.orig/import-export.c
+++ gpe-calendar-0.92/import-export.c
@@ -237,7 +237,7 @@ cal_import_dialog (EventCalendar *ec, co
   GtkWidget *feedbackdlg = gtk_message_dialog_new
     (GTK_WINDOW (main_window),
      GTK_DIALOG_MODAL, GTK_MESSAGE_INFO,
-     GTK_BUTTONS_OK, error ? error->message : _("Import successful"));
+     GTK_BUTTONS_OK, "%s", error ? error->message : _("Import successful"));
 
   if (error)
     g_error_free (error);
