Unclear in BzrQuickStartForEmacsDevs

[Richard Stallman]

http://www.emacswiki.org/emacs/BzrQuickStartForEmacsDevs says

    At the time of this writing, it is
    
<code>sftp://&lt;membername&gt;@bzr.savannah.gnu.org/srv/bzr/emacs/trunk</code>
    but it may change at any moment.

but what does "membername" refer to?
The word "member" does not appear elsewhere in the page.