[gupnp-av] Fix an uninitialised variable error

[Jens Georg <jensgeorg src gnome org>]

commit ca4ffbcca3482465fc7daa52ed87ebd0a4f14596
Author: Mark Ryan <mark d ryan intel com>
Date:   Wed Dec 5 15:25:33 2012 +0100

    Fix an uninitialised variable error
    
    The is_container variable is only initialised if node->name = "container",
    otherwise it is uninitialised.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=689701

 libgupnp-av/gupnp-didl-lite-writer.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libgupnp-av/gupnp-didl-lite-writer.c b/libgupnp-av/gupnp-didl-lite-writer.c
index 8c0e52e..9ab0654 100644
--- a/libgupnp-av/gupnp-didl-lite-writer.c
+++ b/libgupnp-av/gupnp-didl-lite-writer.c
@@ -215,7 +215,7 @@ filter_node (xmlNode             *node,
         xmlNode *child;
         GList   *forbidden = NULL;
         GList   *l;
-        gboolean is_container;
+        gboolean is_container = FALSE;
         const char *container_class = NULL;
 
         if (!tags_only)