Initial value for variable TTY

[Jon L White <JONL at MIT-MC>]

    Date: 30 April 1981 07:35-EST
    From: Jeffrey P. Golden <JPG at MIT-MC>
    In a fresh L^K :
    TTY is bound to +INTERNAL-TTY-ENDPAGEFN 
    instead of a nice integer indicating terminal type.
    Boo!
Patched in TS LISP, and corrected in sources.
Same condition as reported in 
From:     GSB@MIT-ML
Date: Tue, 29 Apr 81 20:20:13 GMT
Original-Date: 04/29/81 16:20:13 EDT
Subject: Re: bleagh!
    To: (BUG LISP) at MIT-ML
    In lisp 2100, the variable TTY has an initial value of
    +INTERNAL-TTY-ENDPAGEFN. .  .  .
      [Ken:  use (= (status ttytype) 0) instead of (= tty 0)]