Re: vc-set-mode-line-busy-indicator

[Richard Stallman]

    I dunno, maybe it's just a personal foible, but emacs the "diff" command
    used to add this sort of terminator line (haven't noticed recently) sort
    of terminator string, and I always found it very annoying -- it probably
    doesn't cause anything to _break_ but it was like an ugly little wart,
    and I always ended up going to extra effort to delete it when saving the
    output.

I think you're making a mountain out of a molehill.  If there is no
other reason for its removal, we should put it back in.

    I think the highlighted mode-line status indicators used by
    e.g. compile-mode (running or finished etc) now are really nice and do a
    great job of quickly making me aware of what's going on.

Those canbe useful, but inserting text at the end is also useful.  For
instance, M-x compile does both.  When it finishes, it inserts text
saying "Compilation finished ...".

    It forces you to do yet another operation (delete the extra output)
    every time when copying from the diff buffer to and email message, or
    some other place.

You don't need to delete that extra output.  It doesn't cause any harm
if you copy it into an email message.