MultiDocRef's path doesn't allow subdirectories

[mortenpi]

Setting MultiDocRef(path="subdir/packagedir", ...) will fail with:

ERROR: LoadError: IOError: mkdir("/tmp/jl_7pJysb/subdir/packagedir"; mode=0o777): no such file or directory (ENOENT)
Stacktrace:
 [1] uv_error
   @ ./libuv.jl:97 [inlined]
 [2] mkdir(path::String; mode::UInt16)
   @ Base.Filesystem ./file.jl:185
 [3] mkdir
   @ ./file.jl:177 [inlined]
 [4] cptree(src::String, dst::String; force::Bool, follow_symlinks::Bool)
   @ Base.Filesystem ./file.jl:342
 [5] cp(src::String, dst::String; force::Bool, follow_symlinks::Bool)
   @ Base.Filesystem ./file.jl:382
 [6] make_output_structure(docs::Vector{MultiDocumenter.MultiDocRef}, prettyurls::Bool)
   @ MultiDocumenter ~/.julia/packages/MultiDocumenter/35Gnf/src/MultiDocumenter.jl:186
 [7] make(outdir::String, docs::Vector{Any}; assets_dir::String, brand_image::Nothing, custom_stylesheets::Vector{Any}, custom_scripts::Vector{Any}, search_engine::MultiDocumenter.SearchConfig, prettyurls::Bool)
   @ MultiDocumenter ~/.julia/packages/MultiDocumenter/35Gnf/src/MultiDocumenter.jl:115

It should probably just mkpath(dirname(ref.path))?

[pfitzseb]

mkpath(dirname(outpath)) should do the trick, yes :)

[pfitzseb]

Fixed by 9d5566c.