22.1.50; [ERC] erc-default-port should be an integer or a string service (not a string number)

[Luca Capello <luca@pca.it>]

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the emacs-pretest-bug@gnu.org mailing list.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

I started to use TOR and in my .emacs I've:

  (setq
   socks-noproxy '("localhost" "127.0.0.1")
   socks-override-functions t
   socks-server '("Default server" "127.0.0.1" 9050 5))
  (require 'socks)

Whenever I tried to connect to the TOR server at Freenode.net [1], I
obtain the following error:
=====
ELISP> (erc :server "mejokbp2brhw4omd.onion")
*** Eval error ***  Wrong type argument: integerp, nil
ELISP> 

Debugger entered--Lisp error: (wrong-type-argument integerp nil)
  lsh(nil -8)
  socks-send-command(#<process socks<1>> 1 3 "mejokbp2brhw4omd.onion" nil)
  open-network-stream("erc-mejokbp2brhw4omd.onion-6667" nil "mejokbp2brhw4omd.onion" "6667")
  erc-server-connect("mejokbp2brhw4omd.onion" "6667" #<buffer mejokbp2brhw4omd.onion:6667>)
  erc-open("mejokbp2brhw4omd.onion" "6667" "gismo" "Luca Capello" t nil)
  erc(:server "mejokbp2brhw4omd.onion")
  eval((erc :server "mejokbp2brhw4omd.onion"))
  eval-expression((erc :server "mejokbp2brhw4omd.onion") nil)
  call-interactively(eval-expression)
=====

This is because erc-default-port (lisp/erc/erc.el:1463) defines the
port number as a string, thus breaking socks-find-services-entry
(lisp/net/socks.el:551).

While upstream ERC switches to "ircd" as erc-default-port (which works
nicely with socks-find-services-entry), to be consistent with
open-network-stream (lisp/subr.el:1544) I'd suggest to rename all
erc*port to erc*service (but this will be a big change).

Thx, bye,
Gismo / Luca

Footnotes: 
[1] http://freenode.net/irc_servers.shtml#tor

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/usr/share/emacs/22.1.50/etc/DEBUG for instructions.


In GNU Emacs 22.1.50.1 (x86_64-pc-linux-gnu)
 of 2007-08-24 on elegiac, modified by Debian
 (Debian emacs-snapshot package, version 1:20070824-1)
configured using `configure  '--build' 'x86_64-linux-gnu' '--host' 'x86_64-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib' '--localstatedir=/var' '--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes' '--enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/22.1.50/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/22.1.50/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/22.1.50/leim' '--with-x=no' 'build_alias=x86_64-linux-gnu' 'host_alias=x86_64-linux-gnu' 'CFLAGS=-DDEBIAN -DSITELOAD_PURESIZE_EXTRA=5000 -g -O2''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

Major mode: Group

Minor modes in effect:
  gnus-topic-mode: t
  gnus-undo-mode: t
  display-battery-mode: t
  display-time-mode: t
  show-paren-mode: t
  encoded-kbd-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
x q ESC [ A L C-s I t a l i a n C-s ESC [ B ESC [ A 
RET RET ESC [ B RET ESC [ B ESC [ A C-x o ESC [ B ESC 
[ B ESC [ B C-x o q l g ESC [ B ESC [ B ESC [ B ESC 
[ B ESC [ B ESC [ B ESC [ B ESC [ B ESC [ B ESC [ B 
ESC [ B ESC [ B ESC [ B ESC [ B ESC [ B RET ESC [ B 
ESC [ B ESC [ B ESC [ A ESC [ A ESC [ A $ # # ESC [ 
B ESC [ B # # ESC [ A ESC [ A B j x ESC [ A ESC [ A 
# # ESC [ A ESC [ A B m C-a C-k n n m l TAB b o TAB 
RET x q RET RET B r RET ESC [ B RET ESC v ESC C-v B 
r RET x q l ESC [ A ESC [ A ESC [ A RET ESC [ B ESC 
[ B ESC [ B ESC [ B ESC [ B ESC [ B RET R q C-x k RET 
y C-x o ESC u ESC [ A q l C-c ESC f h C-c C-g C-x k 
RET C-c ESC f g ESC x e m a DEL DEL DEL r e p o r TAB 
e m TAB DEL DEL DEL DEL DEL DEL d e TAB RET C-g C-h 
f d DEL r e p o TAB r TAB - d e TAB RET C-x 1 ESC x 
r e p o r t - e m TAB b u TAB RET

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