Commit 6cbf1f417222321a47848a7368427ba8a22fe3a5 renames variable
`last-state' to `org-last-state' in org.el. This change isn't
reflected in function `org-todo'.

That causes the following regression: Toggling a TODO state to DONE on
a headline via C-c C-t (`org-todo') results in: "Symbol's value as
variable is void: org-last-state".
This is reproducible in latest HEAD and even in tag 'release_7.8.07'.

M-x emacs-version: GNU Emacs 24.0.94.1 (i386-apple-darwin11.3.0, NS
apple-appkit-1138.32) of 2012-03-12 on moritz-macbook.local

The attached patch contains a simple (two line) fix.


Cheers,
Moritz Ulrich

-- 
Moritz Ulrich