mod_auth_ldap: Handle the inconsistent way in which the MS LDAP

library handles special characters.
PR:	24437
Obtained from:
Submitted by:	Jess Holle
Reviewed by:


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@105379 13f79535-47bb-0310-9956-ffa450edef68