i don't like hyphens in file names, because of how lbmk
has historically handled directories and files in the past;
i've removed a lot of eval statements, to the extent that
it's no longer likely to be a problem (it's barely used now),
but i previously had a problem with using hyphens in config
names.
this design flaw (in lbmk) was fixed ages ago, but i still
maintain this policy. since that time, i use hyphens only.
Signed-off-by: Leah Rowe <leah@libreboot.org>