Re: C-z and C-x C-z are bound to suspend-frame

[Mathias Dahl]

>  The key part is "letter": not "key", not "characters", but "letter".
>  I agree it's far from clear, but it basically means a-z A-Z.

Then I think we have a couple of offending files in Emacs' source tree:

ada-mode.el
delphi.el
mixal-mode.el
modula2.el
vhdl-mode.el

Do a regexp isearch for `"\\C-c[a-zA-Z]' in those files to find them.

/Mathias