[totem] backend: Mark strings as translatable

[Bastien Nocera <hadess src gnome org>]

commit 48fe9fa00650a4828bb77088404607b3aeb3d897
Author: Bastien Nocera <hadess hadess net>
Date:   Sat Feb 21 01:44:50 2015 +0100

    backend: Mark strings as translatable
    
    A few missing strings in dd42ebd45cf39bbdd8b1d5dd0fb0682c00d46b41
    
    https://bugzilla.gnome.org/show_bug.cgi?id=744868

 .../bacon-video-widget-gst-missing-plugins.c       |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/backend/bacon-video-widget-gst-missing-plugins.c 
b/src/backend/bacon-video-widget-gst-missing-plugins.c
index c717566..7a8283f 100644
--- a/src/backend/bacon-video-widget-gst-missing-plugins.c
+++ b/src/backend/bacon-video-widget-gst-missing-plugins.c
@@ -355,15 +355,15 @@ show_codec_confirmation_dialog (TotemCodecInstallContext *ctx,
                                         _("Unable to play the file"));
 
        descriptions_text = g_strjoinv (", ", ctx->descriptions);
-       message_text = g_strdup_printf (ngettext ("%s is required to play the file, but is not installed.",
-                                                 "%s are required to play the file, but are not installed.",
+       message_text = g_strdup_printf (ngettext (N_("%s is required to play the file, but is not 
installed."),
+                                                 N_("%s are required to play the file, but are not 
installed."),
                                                  g_strv_length (ctx->descriptions)),
                                        descriptions_text);
 
        /* TRANSLATORS: this is a button to launch a codec installer.
         * %s will be replaced with the software installer's name, e.g.
         * 'Software' in case of gnome-software. */
-       button_text = g_strdup_printf ("_Find in %s", install_helper_display_name);
+       button_text = g_strdup_printf (_("_Find in %s"), install_helper_display_name);
        gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog), "%s", message_text);
        button = gtk_dialog_add_button (GTK_DIALOG (dialog),
                                        button_text,