Bug#34121: apt: update fails: 'SIZE .../Packages.gz': command not understood

[Thomas Quinot <thomas@cuivre.fr.eu.org>]

Package: apt
Version: 0.1.10

"apt-get update" fails with one specific server:

ERROR ftp://debian.dom.ain./debian/dists/stable/contrib/binary-i386/Packages.gz
  500 'SIZE /debian/dists/stable/contrib/binary-i386/Packages.gz': command not understood.

Server is a Solaris 2.6. Other servers are fine.

-- System Information
Debian Release: 2.1
Kernel Version: Linux melusine 2.2.1 #2 SMP Tue Feb 9 15:40:00 CET 1999 i686 unknown

Versions of the packages apt depends on:
ii  libc6           2.0.7.19981211 GNU C Library: shared libraries
ii  libstdc++2.9    2.91.60-5      The GNU stdc++ library (egcs version)

--- Begin /etc/apt/sources.list (modified conffile)
deb ftp://debian.dom.ain/debian stable main contrib non-free non-US
deb ftp://ftp.lip6.fr/pub/linux/distributions/debian stable main contrib non-free
deb ftp://ftp.lip6.fr/pub/linux/distributions/debian frozen main contrib non-free
deb ftp://ftp.lip6.fr/pub/linux/distributions/debian unstable main contrib non-free
--- End /etc/apt/sources.list