Fixes trac:2550 : Cleanup comment in crcp_bkmrk_pml.h

This commit was SVN r25585.

The following Trac tickets were found above:
  Ticket 2550 --> https://svn.open-mpi.org/trac/ompi/ticket/2550

ompi/mca/crcp/bkmrk/crcp_bkmrk_pml.h

@@ -7,6 +7,7 @@
  *                         University of Stuttgart.  All rights reserved.
  * Copyright (c) 2004-2005 The Regents of the University of California.
  *                         All rights reserved.
+ * Copyright (c) 2011      Oak Ridge National Labs.  All rights reserved.
  * $COPYRIGHT$
  * 
  * Additional copyrights may follow
@@ -235,21 +236,18 @@ BEGIN_C_DECLS
         /** Peer which we received from */
         orte_process_name_t proc_name;
 
-        /** Is this message complete WRT PML semantics?
-         * true = message done on this side (send or receive)
-         * false = message still in process (sending or receiving)
+        /**
+         * Count of the number of completed PML messages that match this reference.
          */
         int done;
 
-        /** Is the message actively being worked on?
-         * true = Message is !done, and is in the progress cycle
-         * false = Message is !done and is *not* in the progress cycle ( [send/recv]_init requests)
+        /**
+         * Count of the number of active PML messages that match this reference.
          */
         int active;
 
-        /** Has this message been posted?
-         * true = message was posted (Send or recv)
-         * false = message was not yet posted.
+        /**
+         * Count of the number of posted PML messages that match this reference.
          *   Used when trying to figure out which messages the drain protocol needs to post, and
          *   which message have already been posted for it.
          */