trees: don't continue if no argument given

main() used to be the only function executed from
outside of main(), in this script, but now we source
a config file and then run the build afterward.

when a flag is provided without OPTARG, this means
that we are continuing such action erroneously. to
mitigate this, return 1 in that instance, and handle
it in the line that calls main(), making it exit with
zero status (success).

Signed-off-by: Leah Rowe <leah@libreboot.org>

0 files changed, 0 insertions, 0 deletions