Enable global minor-mode `prompt-text-mode` to print additional information
always when Emacs asks you something via minibuffer.

By default the text includes your login name, hostname and current working
directory.
For example, when you type `M-x`, Emacs will give you a prompt like:

    10sr@mbp0:~/prompt-text-el M-x

You can configure `prompt-text-format` to change the text to print.
This value will be formatted with `format-mode-line`: see docstring of
`mode-line-format` for available expressions.