mtl ofi: fix formatting of help message

No code or logic changes.

Signed-off-by: Jeff Squyres <jsquyres@cisco.com>

ompi/mca/mtl/ofi/help-mtl-ofi.txt

@@ -2,6 +2,7 @@
 #
 # Copyright (c) 2013-2017 Intel, Inc. All rights reserved
 #
+# Copyright (c) 2017      Cisco Systems, Inc.  All rights reserved
 # $COPYRIGHT$
 #
 # Additional copyrights may follow
@@ -9,8 +10,9 @@
 # $HEADER$
 #
 [OFI call fail]
-Open MPI failed an OFI Libfabric library call (%s).This is highly unusual;
-your job may behave unpredictably (and/or abort) after this.
+Open MPI failed an OFI Libfabric library call (%s).  This is highly
+unusual; your job may behave unpredictably (and/or abort) after this.
+
   Local host: %s
   Location: %s:%d
   Error: %s (%zd)