This option gives us
- flexible authentication options where the name used for logging on
does not have to be the account name
e.g. use ldap_filter = (&(obhjectclass=inetOrgperson)(|(cn={0]})(mail={0})))
to allow loginng on using the cn or the mail address
- automatically consistent / canonicalized username values
(i.e. exactly the way the LDAP server returns them)
This makes sure not fail securely when the query returns multiple entries
- correct grammar in some cases
- we're doing _authentication here, not authorization
- uppercase LDAP in messages & comments
- rename variable _ldap_version to _ldap_module_version
to avoid misunderstanding it as LDAP's protocol version
- align formatting & messages better between _login2() and _login3()
- correct grammar in some cases
- we're doing authentication here, not authorization
- uppercase LDAP in messages & comments
- rename variable _ldap_version to _ldap_module_version
to avoid misunderstanding it as LDAP's protocol version
