Re: setenv

[Richard Stallman]

    The intuitive behavior is for process-environment to work like an
    alist; this is confirmed by checking with `getenv'.  However, when the
    behind-the-scenes syncing happens, does it do

      (mapc #'fix-in-C-env process-environment)

    or

      (mapc #'fix-in-C-env (remove-duplicates process-environment ...))

It is actually the latter.  I will update the Lisp manual
to describe this.