Fold in approved, 2.1/2.2-like behavior which prevents core

dump when doing LDAP auth even if the check_user_id didn't
succeed.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.0.x@239641 13f79535-47bb-0310-9956-ffa450edef68