findall(::Array{UInt8}, ::Array{UInt8}) not implemented

[getzze]

Trying to use find* functions with UInt8 arrays, I found PR 37283.
In news.md, it says that "findfirst, findnext, findlast, and findall" support it, but it is wrong.
It is supported by findprev also and not by findall.

> VERSION
v"1.7.2"
> a = rand(UInt8, 2);
> b = rand(UInt8, 10);
> findfirst(a, b)

> findprev(a, b, 10)

> findall(a, b)
ERROR: MethodError: no method matching findall(::Vector{UInt8}, ::Vector{UInt8})
Closest candidates are:
  findall(::Base.Fix2{typeof(in), <:Union{Real, Array{<:Real}}}, ::Array{<:Real}) at /usr/share/julia/base/array.jl:2417
  findall(::Base.Fix2{typeof(in)}, ::AbstractArray) at /usr/share/julia/base/array.jl:2426
  findall(::Function, ::AbstractArray) at /usr/share/julia/base/array.jl:2257
  ...

[Moelf]

I will take a look, thanks for reporting