revert-buffer-function

revert-buffer-function is a variable defined in `files.el'.
Its value is

revert-buffer--default

• This variable's value is permanent if it is given a local binding.
• This variable may be risky if used as a file-local variable.

Documentation:
Function to use to revert this buffer.
The function receives two arguments IGNORE-AUTO and NOCONFIRM,
which are the arguments that `revert-buffer' received.
It also has access to the `preserve-modes' argument of `revert-buffer'
via the `revert-buffer-preserve-modes' dynamic variable.

For historical reasons, a value of nil means to use the default function.
This should not be relied upon.