a --krb4 usage example added

        curl -w 'We downloaded %{size_download} bytes\n' www.download.com

KERBEROS4 FTP TRANSFER

  Curl supports kerberos4 for FTP transfers. You need the kerberos package

  installed and used at curl build time for it to be used.

  First, get the krb-ticket the normal way, like with the kauth tool. Then use

  curl in way similar to:

        curl --krb4 private ftp://krb4site.com -u username:fakepwd

  There's no use for a password on the -u switch, but a blank one will make

  curl ask for one and you already entered the real password to kauth.

MAILING LIST

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  relevant to this.

  To subscribe, mail curl-request@contactor.se with "subscribe <your email

  address>" in the body.

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  To post to the list, mail curl@contactor.se.