Improve error message.

This commit was SVN r32378.

opal/mca/btl/openib/help-mpi-btl-openib.txt

@@ -13,7 +13,7 @@
 # Copyright (c) 2006-2011 Cisco Systems, Inc.  All rights reserved.
 # Copyright (c) 2007-2009 Mellanox Technologies. All rights reserved.
 # Copyright (c) 2009      Sun Microsystems, Inc.  All rights reserved.
-# Copyright (c) 2013      NVIDIA Corporation.  All rights reserved.
+# Copyright (c) 2013-2014 NVIDIA Corporation.  All rights reserved.
 # $COPYRIGHT$
 #
 # Additional copyrights may follow
@@ -724,7 +724,7 @@ out how to get an OFED stack with that support.
 
   Local host:              %s
 [no_fork_with_gdr]
-You cannot have fork support and CUDA GPU Direct RDMA support on at
-the same time.  Please disable one of them.
+You cannot have fork support and CUDA GPU Direct RDMA support on at the
+same time.  Please disable one of them.  Deactivating the openib BTL.
 
   Local host:              %s