Add hangelog entry for bug(16845) fix.

lustre/ChangeLog

@@ -12,6 +12,10 @@ tbd  Sun Microsystems, Inc.
        * RHEL 4 and RHEL 5/SLES 10 clients behaves differently on 'cd' to a
         removed cwd "./" (refer to Bugzilla 14399).
 
+Severity   : enhancement 
+Bugzilla   : 16845 
+Description: Allow OST glimpses to return PW locks
+
 Severity   : minor 
 Bugzilla   : 16717 
 Description: LBUG when llog conf file is full