[3.12] gh-125957: sync argument naming in sphinx docs of the cmath and help() (GH-125958) (#131963)

gh-125957: sync argument naming in sphinx docs of the cmath and help() (GH-125958)
(cherry picked from commit 0a3eb8855ccea52c618db1cf09840c6368a3745f)

Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>