document -S and -nopad options in usage information

			BIO_printf(bio_err,"%-14s passphrase is the first line of the file argument\n","-kfile");

			BIO_printf(bio_err,"%-14s the next argument is the md to use to create a key\n","-md");

			BIO_printf(bio_err,"%-14s   from a passphrase.  One of md2, md5, sha or sha1\n","");

			BIO_printf(bio_err,"%-14s salt in hex is the next argument\n","-S");

			BIO_printf(bio_err,"%-14s key/iv in hex is the next argument\n","-K/-iv");

			BIO_printf(bio_err,"%-14s print the iv/key (then exit if -P)\n","-[pP]");

			BIO_printf(bio_err,"%-14s buffer size\n","-bufsize <n>");

			BIO_printf(bio_err,"%-14s disable standard block padding\n","-nopad");

#ifndef OPENSSL_NO_ENGINE

			BIO_printf(bio_err,"%-14s use engine e, possibly a hardware device.\n","-engine e");

#endif