cpy: Error when glob matches directory

Currently it throws an error (EISDIR) when the glob matches a directory. I want to copy all files and directory structure to another directory. I am using cpy(['**/*'], '../output/dist', { cwd: 'assets', parents: true }, cb);. This does not work since **/* also matches the directory names.

I could make a PR to fix this if you know what behavior we should have. Should we just ignore empty directories or create them? I’m currently leaning toward creating any directories, which I think is the most intuitive.