Fix stray --standalone help

And a few layout nits

letsencrypt/cli.py

@@ -72,8 +72,7 @@ Choice of server for authentication/installation:
   --apache          Use the Apache plugin for authentication & installation
   --nginx           Use the Nginx plugin for authentication & installation
   --standalone      Run a standalone webserver for authentication
-
-  OR:
+OR:
   --authenticator standalone --installer nginx
 
 More detailed help:
@@ -924,10 +923,7 @@ def _plugins_parsing(helpful, plugins):
     helpful.add("plugins", "--nginx", action="store_true",
                 help="Obtain and install certs using Nginx")
     helpful.add("plugins", "--standalone", action="store_true",
-                help=('Obtain certs using a "standalone" webserver. '
-                      'Changes the default "run" command to "auth".'))
-
-
+                help=("Obtain certs using a "standalone" webserver.")
 
     # things should not be reorder past/pre this comment:
     # plugins_group should be displayed in --help before plugin