Folding means that if stow discovers a parent directory for a project or a file
in it exists, it doesn’t create the directory structure and then links the file,
instead it makes a symbolic link between the directory.
This means that any files created in that directory show up in this repository.
The upside of that situation is that if I remove or rename files, and the
directory it’s in is folded, it doesn’t leave dead links around.
The comment in ‘stow-home’ claims that ‘.stowrc’ doesn’t support variable
expansion. I don’t know if I couldn’t figure it out before or if stow has been
updated since then, but it seems to work fine now.
