title: Subversion on Mac - refuses to get password from keychain
body: <p>On Mac OS X Leopard - when I try and access a remote repository from Terminal it always asks for:
  1. Password 
  2. Username
  3. Password (again)</p>
  
  <p>with the message: "Authentication realm: <a href="http://svn.myserver.com:80" rel="noreferrer">http://svn.myserver.com:80</a> Subversion" </p>
  
  <p>I've checked and my credentials are being stored in Keychain and SVN has access to them. Why won't it use them?</p>