bug#15733: Guile fails to download from poorly-behaved downloads.mysql.com

[Mark H Weaver]

Guile 2.0.9 is unable to download:

  http://downloads.mysql.com/archives/mysql-5.1/mysql-5.1.54.tar.gz

apparently because the HTTP server resets the TCP connection at the end,
instead of closing normally.  Here's what I see:

--8<---------------cut here---------------start------------->8---
http://downloads.mysql.com/.../mysql-5.1.54.tar.gz       99.9% of 23117.4 
KiBERROR: In procedure fport_fill_input: Connection reset by peer
--8<---------------cut here---------------end--------------->8---

wget is able to download the file successfully.

    Mark