Julia: extra newline displaying markdown objects in REPL

[JeffBezanson]

When getting help for a function, or equivalently just displaying a Markdown object, there are now two newlines at the end of the output.

E.g. 0.6:

help?> Core.eval
  eval([m::Module], expr::Expr)

  Evaluate an expression in the given module and return the result. Every Module (except those defined with baremodule) has its
  own 1-argument definition of eval, which evaluates expressions in that module.

julia> 

and now:

help?> Core.eval
  eval([m::Module], expr::Expr)

  Evaluate an expression in the given module and return the result. Every Module (except those defined with baremodule) has its own
  1-argument definition of eval, which evaluates expressions in that module.


julia> 

[fredrikekre]

I am pretty sure this is #25067, in particular the change here https://github.com/JuliaLang/julia/commit/88cdf44996593f35672984bbd48c867ae8d950a2#diff-e7ece136e201ac8acd4899e1a4af3431R151, which makes it such that we don't sidestep the println here https://github.com/JuliaLang/julia/blob/1b92f51ba3544edfcdb70a2f43ac1bb3a7bb5543/stdlib/REPL/src/REPL.jl#L131 anymore (since we now dispatch to the more generic display function) cc @stevengj

[fredrikekre]

Basically, the show method here should not produce a trailing new line:
https://github.com/JuliaLang/julia/blob/1b92f51ba3544edfcdb70a2f43ac1bb3a7bb5543/stdlib/Markdown/src/render/terminal/render.jl#L163

[stevengj]

Should be fixed by my PR.