Re: let HISTORY arg to read functions be a list of history variables

[Richard Stallman]

    1. How about letting the HISTORY argument to read functions (e.g.
    `read-string') be a list of history variables, in addition to letting it be
    a single history variable?

I don't like this.  It is creeping featurism, and not very useful.

If you want to do some special history munging, you can use your own
variable and bind it yourself.  And afterward, if it has been changed,
you can record that change back in the "permanent" history lists however
you wish.