[brasero] Marked a forgotten string for translation

[Philippe Rouquier <philippr src gnome org>]

commit 988892d5da3221ba207ab0e62e7bbe22e6d1da17
Author: Philippe Rouquier <bonfire-app wanadoo fr>
Date:   Wed May 20 10:51:31 2009 +0200

    Marked a forgotten string for translation
---
 src/brasero-audio-disc.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/brasero-audio-disc.c b/src/brasero-audio-disc.c
index 6a19d33..0d0a660 100644
--- a/src/brasero-audio-disc.c
+++ b/src/brasero-audio-disc.c
@@ -1283,7 +1283,7 @@ brasero_audio_disc_set_row_from_metadata (BraseroAudioDisc *disc,
 	}
 	else if (!artist_set)
 		gtk_list_store_set (GTK_LIST_STORE (model), iter,
-				    ARTIST_COL, ("Unknown"),
+				    ARTIST_COL, _("Unknown"),
 				    -1);
 
 	if (!composer_set && g_file_info_get_attribute_string (info, BRASERO_IO_COMPOSER)) {