Slightly modified version of submitted patch to update to
subversion-0.23.

HEADSUP for users from the release announcement:

Please note that this release changes the url for the ra_svn protocol
over an ssh tunnel. The new syntax is svn+ssh://hostname/path.

Submitted by: plasma <plasmaball@pchome.com.tw>
Approved by: Craig Rodrigues <rodrigc@attbi.com>