Re: BUG: indenting lisp code marks buffer as dirty when it shouldn't

[Richard Stallman]

    The buffer is not modified.  Thus the two `buffer-modified-tick's should
    report the same value, but they don't. another way to test this is to save 
the
    buffer before `indent-region', and see that `indent-region' makes the buffer
    dirty, even though it ahsn't actually changed.

It is not a bug to mark the buffer modified in this case.
However, it would be a nice touch to avoid doing so.

If someone wants to work on it, please go ahead.