[grilo-mediaserver2] Root category mustn't be empty

[Juan A. Suarez Romero <jasuarez src gnome org>]

commit 4bf7e0d30fefca7b599ae338727ee294878a884a
Author: Jens Georg <mail jensge org>
Date:   Wed May 8 19:57:57 2013 +0200

    Root category mustn't be empty
    
    With some recent changes in Grilo this does not work anymore and causes aborts
    in libdbus with some empty object path because parents can't be set properly.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=699945

 lib/media-server2-common.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/lib/media-server2-common.h b/lib/media-server2-common.h
index 7bd5b1a..dd14f22 100644
--- a/lib/media-server2-common.h
+++ b/lib/media-server2-common.h
@@ -76,7 +76,7 @@
 #define MS2_UNKNOWN_STR ""
 
 /* Root category */
-#define MS2_ROOT ""
+#define MS2_ROOT "GrlMediaServer2RootCategory"
 
 /* Type items definition */
 typedef enum {