* lisp/vc/ediff-diff.el (ediff-auto-refine): always default
to 'on. (Bug#63318)
Copyright-paperwork-exempt: yes
;;; Fine differences
-(ediff-defvar-local ediff-auto-refine (if (ediff-has-face-support-p) 'on 'nix)
+(ediff-defvar-local ediff-auto-refine 'on)
"If `on', Ediff auto-highlights fine diffs for the current diff region.
If `off', auto-highlighting is not used. If `nix', no fine diffs are shown
at all, unless the user force-refines the region by hitting `*'.