Not used if you also specify :variable.
:lighter SPEC Text displayed in the mode line when the mode is on.
:keymap MAP Keymap bound to the mode keymap. Defaults to `MODE-map'.
- If non-nil, it should be a variable name (whose value is
- a keymap), or an expression that returns either a keymap or
+ If non-nil, it should be an unquoted variable name (whose value
+ is a keymap), or an expression that returns either a keymap or
a list of (KEY . BINDING) pairs where KEY and BINDING are
suitable for `define-key'. If you supply a KEYMAP argument
that is not a symbol, this macro defines the variable MODE-map