krb5-clients: ftp gives spurious permanent error

[Francesco Potorti`]

Package: krb5-clients
Version: 1.2.4-5
Severity: normal

Since installing the kerberos 5 clients on a Debian system, Emacs'
ange-ftp has gotten confused by this message:

root@pot# ftp ftp.it.debian.org
Connected to ftp.bofh.it.
220 ready, dude (vsFTPd 1.0.0: beat me, break me)
530 Please login with USER and PASS.
530 Please login with USER and PASS.
KERBEROS_V4 rejected as an authentication type
Name (ftp.it.debian.org:pot):

As you see, before the prompt, two 530 messages are given, which can be
safely ignored.  Unfortunately, ange-ftp takes them seriously and fails.

According to RFC 959, however, ange ftp is correct, because a 5xy error
is a permanent error.  Is that indeed the case?  Is the kerberised ftp
wrong?  I think so.

-- System Information
Debian Release: 3.0
Kernel Version: Linux pot.cnuce.cnr.it 2.4.18 #1 Fri May 17 13:44:40 CEST 2002 
i686 unknown

Versions of the packages krb5-clients depends on:
ii  e2fsprogs      1.27-2         The EXT2 file system utilities and libraries
ii  krb5-config    1.4            Configuration files for Kerberos Version 5
ii  libc6          2.2.5-10       GNU C Library: Shared libraries and Timezone
ii  libkrb53       1.2.4-5        MIT Kerberos runtime libraries
ii  libncurses5    5.2.20020112a- Shared libraries for terminal handling
ii  e2fsprogs      1.27-2         The EXT2 file system utilities and libraries
        ^^^ (Provides virtual package libcomerr2)