btl/vader: fix typos in the help file

opal/mca/btl/vader/help-btl-vader.txt

@@ -6,6 +6,8 @@
 # Copyright (c) 2006-2014 Cisco Systems, Inc.  All rights reserved.
 # Copyright (c) 2012-2014 Los Alamos National Security, LLC.
 #                         All rights reserved.
+# Copyright (c) 2014      Research Organization for Information Science
+#                         and Technology (RIST). All rights reserved.
 # $COPYRIGHT$
 #
 # Additional copyrights may follow
@@ -86,7 +88,7 @@ parameter to 0 to run without /dev/knem support.
 #
 [knem requested but not available]
 WARNING: Linux kernel Knem support was requested via the
-mca_btl_sm_use_knem MCA parameter, but Knem support was either not
+btl_vader_single_copy_mechanism MCA parameter, but Knem support was either not
 compiled into this Open MPI installation, or Knem support was unable
 to be activated in this process.
 
@@ -97,7 +99,7 @@ is available. This may result in lower performance.
 #
 [cma-permission-denied]
 WARNING: Linux kernel CMA support was requested via the
-mca_btl_vader_single_copy_mechanism MCA variable, but CMA support is
+btl_vader_single_copy_mechanism MCA variable, but CMA support is
 not available due to restrictive ptrace settings.
 
 The vader BTL will fall back on another single-copy mechanism if one