[easytag] Add missing break in playlist dialog switch

[David King <davidk src gnome org>]

commit 5df5c6193c51cdc77feefde05a26161a9d715c7e
Author: David King <amigadave amigadave com>
Date:   Sat Feb 7 09:55:52 2015 +0000

    Add missing break in playlist dialog switch
    
    Found with Coverity (CID 1268296).

 src/playlist_dialog.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/playlist_dialog.c b/src/playlist_dialog.c
index 946786a..9ee4b52 100644
--- a/src/playlist_dialog.c
+++ b/src/playlist_dialog.c
@@ -225,6 +225,8 @@ write_playlist (EtPlaylistDialog *self, GFile *file, GError **error)
                         g_string_free (to_write, TRUE);
                         g_free (mask);
                         g_free (filename_generated_utf8);
+
+                        break;
                     }
                     default:
                         g_assert_not_reached ();