Documentation reg_or_locate/1 has wrong return type about gproc HOT 2 CLOSED

2> application:start(gproc).
ok
3> gproc:where({n,l,a}).
undefined
4> gproc:where({c,l,a}).
** exception error: bad argument
     in function  gproc:where/1
        called as gproc:where({c,l,a})
5> gproc:where({a,l,a}).
undefined
6> gproc:where({p,l,a}).
** exception error: bad argument
     in function  gproc:where/1
        called as gproc:where({p,l,a})