So far it tests for trailing whitespace. "Upstream" files (bison/flex's .?_shipped, kconfig, vendorcode) are ignored. Change-Id: I7af1954d537fd05f06cd210ac130dac87892159b Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: http://review.coreboot.org/645 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>