[gnome-music] player: Mark "Unknown Artist" as translatable

[Vadim Rutkovsky <vrutkovsky src gnome org>]

commit 96010768aba1322c4848a58de517e7c477aa5ffc
Author: Arnel A. Borja <arnelborja src gnome org>
Date:   Sat Aug 3 15:31:20 2013 +0800

    player: Mark "Unknown Artist" as translatable
    
    Also, changed it from "Unknown artist" to "Unknown Artist" to match other
    instances of this in other source files.

 gnomemusic/player.py |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/gnomemusic/player.py b/gnomemusic/player.py
index dfff17b..d45de3e 100644
--- a/gnomemusic/player.py
+++ b/gnomemusic/player.py
@@ -2,6 +2,7 @@ from gi.repository import GIRepository
 GIRepository.Repository.prepend_search_path('libgd')
 
 from gi.repository import Gtk, Gdk, GLib, Gio, GObject, Gst, GstAudio, GstPbutils
+from gettext import gettext as _
 from random import randint
 from gnomemusic.albumArtCache import AlbumArtCache
 
@@ -232,7 +233,7 @@ class Player(GObject.GObject):
         if media.get_artist() is not None:
             self.artistLabel.set_label(media.get_artist())
         else:
-            self.artistLabel.set_label("Unknown artist")
+            self.artistLabel.set_label(_("Unknown Artist"))
 
         url = media.get_url()
         if url != self.player.get_value("current-uri", 0):