bug#3816: 23.1.50; elisp manual diary xrefs

[Kevin Ryde]

A couple of elisp manual cross refs for a recent node renaming in the
emacs manual ...

*** hooks.texi  27 Jun 2009 08:39:25 +1000      1.10
--- hooks.texi  11 Jul 2009 11:02:21 +1000      
***************
*** 259,276 ****
  
  @item nongregorian-diary-listing-hook
  @iftex
! @inforef{Hebrew/Islamic Entries,, emacs-xtra}.
  @end iftex
  @ifnottex
! @xref{Hebrew/Islamic Entries,,, emacs}.
  @end ifnottex
  
  @item nongregorian-diary-marking-hook
  @iftex
! @inforef{Hebrew/Islamic Entries,, emacs-xtra}.
  @end iftex
  @ifnottex
! @xref{Hebrew/Islamic Entries,,, emacs}.
  @end ifnottex
  
  @item occur-hook
--- 259,276 ----
  
  @item nongregorian-diary-listing-hook
  @iftex
! @inforef{Non-Gregorian Diary,, emacs-xtra}.
  @end iftex
  @ifnottex
! @xref{Non-Gregorian Diary,,, emacs}.
  @end ifnottex
  
  @item nongregorian-diary-marking-hook
  @iftex
! @inforef{Non-Gregorian Diary,, emacs-xtra}.
  @end iftex
  @ifnottex
! @xref{Non-Gregorian Diary,,, emacs}.
  @end ifnottex
  
  @item occur-hook