^$&%&*$&)% readline uses \n characters instead of letting the terminal wrap

^$&%&*$&)% readline uses \n characters instead of letting the terminal wrap
the screen.  This mucks up expect something severe.  )-:

Don't use readline if the CLI_NO_READLINE environment variable is set.
(This used to be commit f0b7593ef54f8f093018ee2a8325e6f4422a4bbd)