Line break and indentation with where

General Usage
4

Without thinking too long about it, I would probably be inclined to do

function LongConstructorName(value::T, gradient::S) where
                            {T <: Real, S <: AbstractVector{T}}
    1+1
end

although I could easily see myself doing

function LongConstructorName(value::T,
                             gradient::S) where {T <: Real,
                                                 S <: AbstractVector{T}}
    1+1
end

just because my editor would be helpful with it.