Merge branch 'comment.AthenaKernel-20190513' into 'master'

AthenaKernel: A couple comment fixes.

See merge request atlas/athena!23382

Control/AthenaKernel/AthenaKernel/RCUObject.h

 // This file's extension implies that it's C, but it's really -*- C++ -*-.
 
 /*
-  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
+  Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
 */
 
 // $Id$
@@ -220,7 +220,6 @@ protected:
   /**
    * @brief Declare that all slots are in a grace period.
    * @param Lock object (external locking).
-   * @param ctx Event context for the slot.
    *
    * The caller must be holding the mutex for this object.
    */

Control/AthenaKernel/AthenaKernel/RCUObject.icc

 /*
-  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
+  Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
 */
 
 // $Id$
@@ -64,7 +64,6 @@ bool IRCUObject::endGrace (lock_t& /*lock*/, const EventContext& ctx)
 /**
  * @brief Declare that all slots are in a grace period.
  * @param Lock object (external locking).
- * @param ctx Event context for the slot.
  *
  * The caller must be holding the mutex for this object.
  */