These are know bugs in dpkg-ftp 1.4.9.1.

* there will be problems (probably an error) when trying to get a
file's modification date without using the MDTM command (ie if the
server does not support this command, or a firewall rejects it), if
the ftp server is running with a LC_TIME (or LANG) setting different
from "C" or "en".  Hopefully noone will notice ;)

[update]:

* failures during do_mdtm are not caught for retry.  This will
probably not be a very important issue.

<dirson@debian.org>
