Merge r1613682 from trunk:

In 2.4.10, AuthLDAPBindDN might not be used for some LDAP searches, causing 
LDAP authz failures if AuthLDAPBindDN was able to search through more of
LDAP than web users.




git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1631119 13f79535-47bb-0310-9956-ffa450edef68