wes was added to LocalNamesEn.php with "Pidgin" as the name. There are lots of pidgins though (see Wikipedia), so it's not clear what "Pidgin" refers to.
The original request (T263946) used "Pidgin (Cameroon)", ISO 639-3 and Glottolog use "Cameroon Pidgin" and the English Wikipedia uses "Cameroonian Pidgin English". The name should be one of those instead.