bug#815: 22.2.91; Error when visiting pbm files

[YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>]

The invocation

  emacs -Q -D /usr/local/share/emacs/22.2.91/etc/images/attach.pbm

gives an error

  File mode specification error: (void-function image-get-display-property)

and it shows raw bytes instead of an image.

Emacs 22.2 shows an image correctly.

				     YAMAMOTO Mitsuharu
				mituharu@math.s.chiba-u.ac.jp

In GNU Emacs 22.2.91.1 (sparc-sun-solaris2.8, X toolkit, Xaw3d scroll bars)
 of 2008-08-29 on church
Windowing system distributor `The X.Org Foundation', version 11.0.10300000
configured using `configure  '--x-libraries=/usr/local/lib''

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: ja
  locale-coding-system: japanese-iso-8bit
  default-enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  line-number-mode: t