bug#3913: 23.1.50; C-h S in apropos-mode buffer

[Kevin Ryde]

In an apropos-mode buffer it'd be good if the info-look setups (C-h S)
used the elisp manuals.  Eg.

    M-x apropos
    car
    C-x o
    C-u 5 C-n   (onto the "car" line)
    C-h S

asks in the minibuffer

    Use symbol help mode:

where I thought it might know that already.

2009-07-24  Kevin Ryde  <user42@zip.com.au>

        * info-look.el: Add setup for apropos-mode to use emacs-lisp-mode
        manuals (similar to existing setup for help-mode).

*** info-look.el        07 Jan 2009 11:28:51 +1100      1.67
--- info-look.el        24 Jul 2009 08:55:16 +1000      
***************
*** 973,978 ****
--- 973,983 ----
              "`" "(")))
  
  (info-lookup-maybe-add-help
+  :mode 'apropos-mode
+  :regexp "[^][()`',\" \t\n]+" ;; same as emacs-lisp-mode above
+  :other-modes '(emacs-lisp-mode))
+ 
+ (info-lookup-maybe-add-help
   :mode 'Custom-mode
   :ignore-case t
   :regexp "[^][()`',:\" \t\n]+"




In GNU Emacs 23.1.50.4 (i586-pc-linux-gnu, GTK+ Version 2.16.4)
 of 2009-07-24 on blah.blah
configured using `configure  'CFLAGS=-O -g' '--prefix=/down/emacs/b/inst' 
'--with-x-toolkit=gtk''

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_AU
  value of $XMODIFIERS: nil
  locale-coding-system: iso-latin-1-unix
  default-enable-multibyte-characters: t