uniquify the docstring of unique(itr)

Author: rfourquet

base/multidimensional.jl

@@ -1298,9 +1298,16 @@ hash(x::Prehashed) = x.hash
 
 Returns an array containing only the unique elements of the iterable `itr`, in
 the order that the first of each set of equivalent elements originally appears.
+The unicity is determined by [`isequal`](@ref).
 If `dim` is specified, returns unique regions of the array `itr` along `dim`.
 
 ```jldoctest
+julia> unique([1, 2, 6, 2])
+3-element Array{Int64,1}:
+ 1
+ 2
+ 6
+
 julia> A = map(isodd, reshape(collect(1:8), (2,2,2)))
 2×2×2 Array{Bool,3}:
 [:, :, 1] =

base/set.jl

@@ -120,20 +120,6 @@ const ⊆ = issubset
 ⊉(l::Set, r::Set) = !⊇(l, r)
 ⊋(l::Set, r::Set) = <(r, l)
 
-"""
-    unique(itr)
-
-Returns an array containing one value from `itr` for each unique value,
-as determined by [`isequal`](@ref).
-
-```jldoctest
-julia> unique([1; 2; 2; 6])
-3-element Array{Int64,1}:
- 1
- 2
- 6
-```
-"""
 function unique(itr)
     T = _default_eltype(typeof(itr))
     out = Vector{T}()