Bash scripts in black and white

[Angelo Graziosi]

With the current trunk (rev. 100258), visiting or editing bash scripts 
(*.sh) results in black and white (B&W), i.e. it misses the color 
syntax. There is also an error message. To reproduce:

$ emacs -Q &

C-x C-f test.sh

In the minibuffer Emacs writes:

"File mode specification error: (void-function prog-mode)"

and typing syntax elements (like '#' etc.) results in B&W. The buffer 
'test.sh' is visited in the 'Fundamental' mode.

This happens both on Cygwin and on GNU/Linux Kubuntu 10.04, GTK builds, 
clean bootstraps.

The last bootstrap that works with *.sh files is that done with rev. 100219.

Ciao,
Angelo.