Make fake_bind compatible to runic.

[j-fu]

Runic is a new "runic" formatter for Julia code.
Due to peculiarities of implementation, format toggling is better handeled by wrapping around whole functions or macros, see

See fredrikekre/Runic.jl#107 (comment)

So in order to make Pluto notebooks invariant under runic formatting I propose to modify fake_bind accordingly.

Try this Pull Request!

Open Julia and type:

julia> import Pkg
julia> Pkg.activate(temp=true)
julia> Pkg.add(url="https://github.com/j-fu/Pluto.jl", rev="runic_fake_bind")
julia> using Pluto

[fredrikekre]

(Simply adding return in front of the quote would be an alternative fix if you don't want to move the comments to the outside of the macro.)

[fonsp]

Let's go with the return then! See #3072 for previous discussion

[fonsp]

Can you update the PR?