change ldap group lookup when using memberUid to match using name

according to rfc2307 which says the memberUid is a name (not a uid
strangely enough)

just going by
http://manpages.ubuntu.com/manpages/natty/man5/sssd-ldap.5.html
ldap_schema description and my broken install on ubuntu...

I can't say what ldif I used except it was standard (I didn't write it)
and ldapscripts and phpmyadmin all seem to want the field to be a name.

war/src/main/webapp/WEB-INF/security/LDAPBindSecurityRealm.groovy

@@ -64,7 +64,7 @@ bindAuthenticator(BindAuthenticator2,initialDirContextFactory) {
 authoritiesPopulator(AuthoritiesPopulatorImpl, initialDirContextFactory, instance.groupSearchBase) {
     // see DefaultLdapAuthoritiesPopulator for other possible configurations
     searchSubtree = true;
-    groupSearchFilter = "(| (member={0}) (uniqueMember={0}) (memberUid={1}))";
+    groupSearchFilter = "(| (member={0}) (uniqueMember={0}) (memberUid={0}))";
 }
 
 authenticationManager(ProviderManager) {