bug#37023: 27.0.50; Package.el error

[Eli Zaretskii]

> From: Tim Cross <theophilusx@gmail.com>
> Date: Wed, 14 Aug 2019 14:14:13 +1000
> 
> 1. Start emacs -Q
> 2. Add MELPA repository to package archives e.g.
> 
> (add-to-list 'package-archives `("melpa" . "https://melpa.org/packages/";))
> 
> 3. M-x package-l;ist-packages
> 4. Try to install elisp-demos package
> 
> This is with current emacs 27.0.50 (commit
> f4974d6fe6137f436763998be2). Tested under both Ubuntu 189.04 and current
> ArchLinux systems.
> 
> Backtrace:
> 
> Debugger entered--Lisp error: (error "Package does not untar cleanly into 
> directory elis...")
>   signal(error ("Package does not untar cleanly into directory elis..."))
>   error("Package does not untar cleanly into directory %s/" 
> "elisp-demos-20190720.1301")
>   package-untar-buffer("elisp-demos-20190720.1301")

Thanks.

I went down the rabbit hole (package.el->tar-mode.el->url-http.el) and
found that fixing bug#36773 exposed an unrelated 6-year old bug in
url-http.el.

Should be fixed now.