bug#34341: 26.1; url-retrieve-synchronously returns blank buffer

[Eli Zaretskii]

> From: Robert Pluim <rpluim@gmail.com>
> Cc: npostavs@gmail.com,  l.charignon@gmail.com,  34341@debbugs.gnu.org
> Date: Sun, 12 May 2019 16:55:21 +0200
> 
> >>>>> On Sun, 12 May 2019 17:02:56 +0300, Eli Zaretskii <eliz@gnu.org> said:
>     >> That patch to src/gnutls.c fixes my testcase, which is imap
>     >> over TLS1.3 to gmail. Itʼs pretty simple, I think it could go
>     >> to emacs-26. Eli?
> 
>     Eli> Didn't I already answer that?  If not, I guess you are now
>     Eli> talking about some patch which I didn't see, so please show
>     Eli> it.
> 
> >From 6d5f5670443f7adfbd6993173ad997ce25827775 Mon Sep 17 00:00:00 2001
> From: Noam Postavsky <npostavs@gmail.com>
> Date: Mon, 6 May 2019 19:55:17 -0400
> Subject: [PATCH] Handle GNUTLS_E_AGAIN in emacs_gnutls_read (Bug#34341)
> 
> * src/gnutls.c (emacs_gnutls_read): Similar to emacs_gnutls_write,
> when gnutls_record_recv returns GNUTLS_E_AGAIN set errno to EGAIN.

I definitely said it was okay to push that one to emacs-26:

  https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34341#34

Thanks.