buildbot failure in openid on PHP 5.2.4

[Jonathan Daugherty]

# Warning: Tests_Auth_OpenID_StoreTest::require_once(DB.php): failed
# to open stream: No such file or directory in
# /home/buildslave/reposlave/php5.2.4/build/Tests/Auth/OpenID/StoreTest.php
# on line 355

This can be fixed by installing PEAR::DB:

  $ pear install db

-- 
  Jonathan Daugherty
  JanRain, Inc.
  irc.freenode.net: cygnus in #openid
  cygnus.myopenid.com