diff-auto-refine-mode-hook
diff-auto-refine-mode-hook is a variable defined in `diff-mode.el'.Its value is
nil
- This variable may be risky if used as a file-local variable.
Documentation:
Hook run after entering or leaving `diff-auto-refine-mode'.
No problems result if this variable is not bound.
`add-hook' automatically binds it. (This is true for all hook variables.)