flag --dotfiles work for directories but not for directories and files

I'm on ArchLinux
stow (GNU Stow) version 2.4.1

I've been using stow for a few years actually and today I decided to try out the `--dotfiles` flag so I won't have a much of hidden directories/files on my dotfiles repository.

So I created a test folder in the following as I've always done but I have replaced `.config` with `dot-config` and `.testrc` with `dot-testrc`.

```
test
└── dot-config
└── test
└── dot-testrc
```

But when I run `stow -vt ~ test --dotfiles` it creates the following structure:

```
test
└── .config
└── test
└── dot-testrc
```

Shouldn't it also rename `dot-testrc` to `.testrc`?

Reproduce the issue with the shown `stow -vt ~ test --dotfiles` command and trace the `--dotfiles` handling in the `stow` entry point. Confirm the behavior for both the `dot-config` directory and nested `dot-testrc` file; done means both are installed as `.config` and `.testrc`.

Written by the indexing model from the issue text.