bug#70784: Abolish string resizing

[Richard Stallman]

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> Next on Matthias's immutable list of "improvements":
> doing away with mutable lists.

Drew, Eli is right.  Any views we want to state can be expressed
without sarcasm.  Please do it that way.

Another thing to avoid is assuming someone will next propose
some further step.

  > Without sarcasm: From Mattias in bug 70155 thread:

  >   Of course if you ask me, I'd prefer it if lists
  >   were guaranteed to be proper, immutable, with
  >   the empty list an object distinct from the symbol
  >   nil and the false boolean value. Maybe next year.

Those words explicitly highlight the fact that he was _not_ proposing
this.

  > Proposing that Elisp lists be only _proper_ (never
  > dotted) and _immutable_ is a _radical_ departure
  > from Lisp.

That is true.  But he does not proposed we make this change, so please
don't criticize him as if he did.

-- 
Dr Richard Stallman (https://stallman.org)
Chief GNUisance of the GNU Project (https://gnu.org)
Founder, Free Software Foundation (https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)