Somehow I lost a $ on headerlist between when I tested the script and when I submitted it, turning headerlist into plain text instead of a variable name. This makes the test always pass. - Fix variable bug. - exclude this script from the check. - update test for empty HEADER_DIRS variable. Change-Id: I6080c520bc741e9d689f7c66ee97879afc8ba38c Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/13057 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <pgeorgi@google.com>