- Change log_debug() for normal locking operations to log_debug1() where
      DLM_DEBUG1 isn't set by default.  This way abnormal or infrequent
      conditions from log_debug() aren't quickly blown away.
    
    - Don't call dlm_locks_dump() when DLM_ASSERT fails.
    
    - In rcom_send_message(), only test/clear the READY flag when doing a
      synchronous request.  It's not used for async requests and because
      these async requests can be called from different threads it could
      lead to incorrect assertion failures.
    
    - In rcom_send_message() get rid of the RECCOMM_WAIT flag which was
      only used as a sanity check.  Given that rcom_send_message can be
      called from multiple threads and only synchronous calls are serialized,
      an async caller could change the flag for the sync request and cause
      the reply message to be discarded.