diff --git a/tsshbatch.rst b/tsshbatch.rst
index 2022d8c..100df13 100644
--- a/tsshbatch.rst
+++ b/tsshbatch.rst
@@ -120,7 +120,15 @@
   -a               Don't abort program after failed file transfers.
                    Continue to next transfer attempt.  (Default: Abort)
 
-  -b               Don't abort program after failed sudo command. (Default: Abort)
+  -b               Don't abort program after failed sudo command.  Normally, any
+                   ``sudo`` failure causes immediate program termination.  This
+                   switch tells ``tsshbatch`` to continue processing on the
+                   next host even if such a failure occurs.  This allows
+                   processing to continue for those hosts where ``sudo`` does
+                   work correctly.  This is helpful in large environments where
+                   ``sudo`` is either improperly configured on some hosts or
+                   has a different password.  This can also be used to discover
+                   where ``sudo`` does- and does not work correctly.
   
   -e               Don't report remote host ``stderr`` output.
 
@@ -136,7 +144,7 @@
 
   -n name          Login name to use.
 
-  -p pw            Password to use when logging in and/or doing sudo.
+  -p pw            Password to use when logging in and/or doing ``sudo``.
 
   -q               Quiet mode - produce less noisy output.  Turns off ``-y``.
 
@@ -1201,7 +1209,7 @@
 
 ::
 
-  $Id: tsshbatch.rst,v 1.165 2016/01/10 20:30:10 tundra Exp $
+  $Id: tsshbatch.rst,v 1.166 2016/01/10 20:35:28 tundra Exp $
 
 This document was produced with ``emacs``, ``RestructuredText``, and ``TeX Live``.