[rygel] Fix the docs build.

[Murray Cumming <murrayc src gnome org>]

commit de4b92fb10c87fcfe998021d3b24abe073c33c85
Author: Murray Cumming <murrayc murrayc com>
Date:   Wed Dec 12 11:24:50 2012 +0100

    Fix the docs build.

 src/librygel-server/rygel-trackable-container.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/librygel-server/rygel-trackable-container.vala b/src/librygel-server/rygel-trackable-container.vala
index 431928d..566de68 100644
--- a/src/librygel-server/rygel-trackable-container.vala
+++ b/src/librygel-server/rygel-trackable-container.vala
@@ -91,7 +91,7 @@ public interface Rygel.TrackableContainer : Rygel.MediaContainer {
      * This should be overriden by the root container of the back-end
      * implementation.
      *
-     * @return: the current SystemUpdateID as persisted by the back-end.
+     * @return the current SystemUpdateID as persisted by the back-end.
      */
     public virtual uint32 get_system_update_id () { return 0; }