Variable: ediff-use-last-dir
ediff-use-last-dir is a customizable variable defined in ediff.el.gz.
Value
nil
Documentation
If t, Ediff will use previous directory as default when reading file name.
Source Code
;; Defined in /usr/src/emacs/lisp/vc/ediff.el.gz
(defcustom ediff-use-last-dir nil
"If t, Ediff will use previous directory as default when reading file name."
:type 'boolean)