[grilo-plugins] gravatar: Adapted to changes in grl_plugin_registry_register_metadata_key

[Iago Toral Quiroga <itoral src gnome org>]

commit e724133125b7aad8a102ca199fe664ea1be06ebb
Author: Iago Toral Quiroga <itoral igalia com>
Date:   Mon Dec 20 10:18:26 2010 +0100

    gravatar: Adapted to changes in grl_plugin_registry_register_metadata_key

 src/gravatar/grl-gravatar.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/gravatar/grl-gravatar.c b/src/gravatar/grl-gravatar.c
index 11ec893..41d9fa5 100644
--- a/src/gravatar/grl-gravatar.c
+++ b/src/gravatar/grl-gravatar.c
@@ -161,7 +161,7 @@ register_gravatar_key (GrlPluginRegistry *registry,
                               NULL,
                               G_PARAM_READWRITE);
 
-  key = grl_plugin_registry_register_metadata_key (registry, spec);
+  key = grl_plugin_registry_register_metadata_key (registry, spec, NULL);
 
   /* If key was not registered, could be that it is already registered. If so,
      check if type is the expected one, and reuse it */