problem about cvs via http proxy
 

Since cvs 1.12.7, we can use cvs via http proxy, but when I do, problems come up:

[rick@Fedora-Core corkscrew-2.0]$ cvs -d : pserver;proxy=172.16.35.111;proxyport=8080:anoncvs@anoncvs.freedesktop.org:/cvs/xorg login Usage: cvs [cvs-options] command [command-options-and-arguments]
where cvs-options are -q, -n, etc.
(specify --help-options for a list of options)
where command is add, admin, etc.
(specify --help-commands for a list of commands
or --help-synonyms for a list of command synonyms)
where command-options-and-arguments depend on the specific command
(specify -H followed by a command name for command-specific help)
Specify --help to receive this message

The Concurrent Versions System (CVS) is a tool for version control.
For CVS updates and additional information, see
the CVS home page at http://www.cvshome.org/ or
the CVSNT home page at http://www.cvsnt.org/
login:


when I try to use the username and passwd for proxy server,it says incorrect, then how can I use cvs via http proxy? TIA