add a news line for r26119. About the new stdout/stderr buffering MCA parameter.

This commit was SVN r26120.

The following SVN revision numbers were found above:
  r26119 --> open-mpi/ompi@4dd9f89a99

NEWS

@@ -15,6 +15,7 @@ Copyright (c) 2006      Sun Microsystems, Inc.  All rights reserved.
 Copyright (c) 2006-2007 Los Alamos National Security, LLC.  All rights
                         reserved.
 Copyright (c) 2010-2012 IBM Corporation.  All rights reserved.
+Copyright (c) 2012      Oak Ridge National Labs.  All rights reserved.
 $COPYRIGHT$
 
 Additional copyrights may follow
@@ -66,6 +67,9 @@ Trunk (not on release branches yet)
 - Added MPI-3 function: MPI_GET_LIBRARY_VERSION.
 - Enabled compile-time warning of deprecated MPI functions by default
   (in supported compilers).
+- Added a new MCA parameter (ess_base_stream_buffering) that allows the user
+  to override the system default for buffering of stdout/stderr streams
+  (via setvbuf).
 
 
 1.5.5