Re: Minibuffer default values list

[Richard Stallman]

    In the patch below I added a new one-function variable
    `minibuffer-default-set-function' run before `goto-history-element'
    reads the value of `minibuffer-default' when moving into the future.

It looks good.

    Note that `shell-command' still depends on dired, but this can be avoided
    by moving `dired-read-shell-command-default' to mailcap.el.

Once the file mailcap.el is moved, it would be a good idea
to move that function into mailcap.el and rename it
to `mailcap-file-default-commands'.