[racket] Discrepency in Commandline Documentation

The `-i` flag does add a `(newline)` call after
`(read-eval-print-loop)` returns; I'll fix the docs.

Echoing of ^D, seems to be the same issue on my machine. With `-e
"(read-eval-print-loop)"`, I see ^D appear and then get overwritten,
but `-e "(begin (read-eval-print-loop) (newline))"` looks the same
as `-i` for me.

At Mon, 25 Nov 2013 21:56:27 -0800, Eric Dobson wrote:
> The documention for the commandline racket implies that the following
> two command lines should have the same behavior.
> 
> racket -v -e "(read-eval-print-loop)"
> racket -i -q
> 
> But on my machine I'm seeing different behavior with regards to
> terminal settings. Without interactive mode I don't get the echo of
> control characters and I don't get a newline when the program exits.
> I'm trying to make a program which when run behaves the same as the
> standard interactive racket (or close enough to not bother me). So I
> want to understand this distinction so that I can replicate it.
> 
> endobson at yggdrasil () % racket -v -e "(read-eval-print-loop)"
> Welcome to Racket v6.0.0.1.
> > %
> endobson at yggdrasil () % racket -i -q
> Welcome to Racket v6.0.0.1.
> > ^D
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