Re: find-file dialog in Carbon Emacs is broken

[Richard Stallman]

The reason that dired does not use read-directory-name is that the
input need not be a directory name.  The input is often a wildcard
file name pattern.

If the file name dialogs don't handle wildcard file name patterns,
Dired has to read them in the minibuffer.  This means that the
menu item for Open Directory needs to run another command that
reads input in a special way.