rustdoc should render 1-tuples as (T,)

[huonw]

Currently it's rendering them as (T) e.g. http://doc.rust-lang.org/master/std/tuple/primitive.tuple.html

impl<A: Rand> Rand for (A)
    fn rand<R: Rng>(_rng: &mut R) -> (A)

[lucidd]

i will try to do this if you don't mind.