[gnome-alsamixer] Add translator-credits to about window

[Piotr DrÄg <piotrdrag src gnome org>]

commit b9fa953a171bfe542ab762bc3a9d95eb00301d19
Author: Piotr DrÄg <piotrdrag gmail com>
Date:   Wed Jan 2 02:36:33 2013 +0100

    Add translator-credits to about window

 src/gam-app.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/gam-app.c b/src/gam-app.c
index b00443d..e498b49 100644
--- a/src/gam-app.c
+++ b/src/gam-app.c
@@ -440,6 +440,7 @@ gam_app_about_cb (GtkWidget *widget, gpointer data)
                            "copyright", "\302\251 2001\342\200\2232005 PAW Digital Dynamics",
                            "name", _("GNOME ALSA Mixer"),
                            "version", VERSION,
+                           "translator-credits", _("translator-credits"),
                            NULL);
 #else
     GtkWidget *about;