[gnome-applets] drivemount: fix warning

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 021e00f6c2aec1c1c6a34ee2f9137fcdc495854a
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Thu Mar 26 00:45:48 2015 +0200

    drivemount: fix warning

 drivemount/drive-button.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/drivemount/drive-button.c b/drivemount/drive-button.c
index f8bfccf..6eb1b3b 100644
--- a/drivemount/drive-button.c
+++ b/drivemount/drive-button.c
@@ -547,8 +547,7 @@ open_drive (DriveButton *self, GtkWidget *item)
                                                        NULL);
          else
              gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
-                                                       _("Could not find Nautilus"),
-                                                       NULL);
+                                                       "%s", _("Could not find Nautilus"));
 
        g_signal_connect (dialog, "response",
                          G_CALLBACK (gtk_widget_destroy), NULL);