error message when using ftp protocol

[Hiroshi Fujishima <pooh@xxxxxxxxxxxxxxxxxxxx>]

Dear Bug Team!

たとえば、ftp://core.ring.gr.jp/ のような、URL を閲覧すると、URL の収得
は正常に行われているにも関わらず、以下のエラーメッセージが表示されます。
(前もって、ange-ftp や tramp を require しておかないと隠れてみえないか
もしれません)

Cannot retrieve URL: ftp://core.ring.gr.jp/ (exit status: 0)

================================================================

System Info to help track down your bug:
---------------------------------------
emacs-w3m-version
 => "1.3.80.35"
emacs-version
 => "GNU Emacs 21.3.50.1 (sparc-sun-solaris2.8, X toolkit, Xaw3d scroll bars)\n of 2004-02-19 on newton.nature.tsukuba.ac.jp"
mule-version
 => "5.0 (SAKAKI)"
system-type
 => usg-unix-v
w3m-version
 => "w3m/0.4.2"
w3m-type
 => w3m
w3m-compile-options
 => ("lang=ja" "kanji-symbols" "image" "color" "ansi-color" "mouse" "menu" "cookie" "ssl" "ssl-verify" "external-uri-loader" "w3mmailer" "nntp" "alarm" "mark" "migemo")
w3m-language
 => "Japanese"
w3m-command-arguments
 => nil
w3m-command-arguments-alist
 => nil
w3m-command-environment
 => nil
w3m-use-mule-ucs
 => nil

-- 
Hiroshi Fujishima