bug#30077: 27.0.50; print-quoted should default to t

[Eli Zaretskii <eliz@gnu.org>]

> From: Stefan Monnier <monnier@IRO.UMontreal.CA>
> Date: Thu, 11 Jan 2018 11:31:09 -0500
> 
> I suggest the patch below (for master, obviously).
> 
> 
>         Stefan
> 
> 
> diff --git a/src/print.c b/src/print.c
> index 2c5cf108aa..b9d556c17c 100644
> --- a/src/print.c
> +++ b/src/print.c
> @@ -2424,7 +2424,7 @@ This affects only `prin1'.  */);
>    DEFVAR_BOOL ("print-quoted", print_quoted,
>  	       doc: /* Non-nil means print quoted forms with reader syntax.
>  I.e., (quote foo) prints as \\='foo, (function foo) as #\\='foo.  */);
> -  print_quoted = 0;
> +  print_quoted = true;
>  
>    DEFVAR_LISP ("print-gensym", Vprint_gensym,
>  	       doc: /* Non-nil means print uninterned symbols so they will read as uninterned.

I have no opinion about the change, but if this is installed, please
mention the change in NEWS.

Thanks.