examples in the wscons.conf). Now, you have to specify wscons
control device and put variable name and parameter on separate
fields.
NB: changes ARE NOT backward compatible and config file must be
checked (but default config doesn't utilizing setvar).
keymap file to wscons.conf.
Follows PR misc/12760 by Stephen Borrill, but uses the external keymap
file instead of individual key entries in wscons.conf. This saves a lot
of editing work if the map has to be switched.
