ldap_parse_sort_control(3) on macOS

The text c582d2eaa0ab, 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.

Decode the information returned from a search operation that used a server-side sort control