bug#2659: 23.0.91; set-face-attribute :height float on a Mac

The following results in an error:

(set-face-attribute 'default nil :height 1.1)

Debugger entered--Lisp error: (error "Invalid default face height" 1.1)
  internal-set-lisp-face-attribute(default :height 1.1 0)
  set-face-attribute(default nil :height 1.1)

I think it should not because the doc string says:

`:height'

VALUE must be either an integer specifying the height of the font to use
in 1/10 pt, a floating point number specifying the amount by which to
scale any underlying face, or a function, which is called with the old
height (from the underlying face), and should return the new height.

Either that, or the doc string must be improved. :)

I'm using Apple's Mac OS 10.3.9.


In GNU Emacs 23.0.91.1 (powerpc-apple-darwin7.9.0, NS apple-appkit-743.43)
 of 2009-03-13 on Alpinobombus.local
Windowing system distributor `Apple', version 10.3.743
configured using `configure  '--with-ns''

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: nil
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t