gnutls-cli: handle binary data from stdin

[Simon Josefsson]

Vitaly Mayatskikh <v.mayatskih at gmail.com> writes:

> Hello!
>
> gnutls-cli is used as TLS wrapper in several MUAs (like Gnus and
> Wanderlust) to access secured IMAP mail servers. IMAP proto has
> extension RFC4978 for traffic compression with deflate
> method. However, gnutls-cli is pure text-oriented client, so it can't
> handle binary data from stdin correctly.
>
> This trivial patch fixes the problem.
>
> P.s.: Please, keep me in Cc, I'm not subscribed to the list.

I modified it slightly and applied it on git master now, thanks!

/Simon