slapauth(8) on macOS

The text 75db4a9fbba6, as Mac OS X 10.7.5, Mac OS X 10.7.4, Mac OS X 10.7.3, Mac OS X 10.7.2, Mac OS X 10.7.1, Mac OS X 10.7 shipped it.

Check a list of string-represented IDs for LDAP authc/authz

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