def get_netloc_and_auth(self, netloc, scheme):
return netloc, (None, None)<EOL>
Parse the repository URL's netloc, and return the new netloc to use
along with auth information.

Args:
  netloc: the original repository URL netloc.
  scheme: the repository URL's scheme without the vcs prefix.

This is mainly for the Subversion class to override, so that auth
information can be provided via the --username and --password options
instead of through the URL.  For other subclasses like Git without
such an option, auth information must stay in the URL.

Returns: (netloc, (username, password)).