Re: print-circle and describe-variable

[Richard Matthew Stallman]

    I think only Lisp hackers will encounter/care about such complicated
    structures, and they are surely able to customize print-length and
    print-level if necessary.

Lots of users will see these variables in values shown by
describe-variable.  And even if they know how to customize,
it is pure inconvenience to require them to do so.

It would be useful for the help buffer to let RET expand the partly
hidden value, just as evaluation in the buffer does.  And the code
is already written.