brillo_update_payload: Improve help message and flags.
Different sub-commands have different flags. This patch improves the
help message of each sub-command including only the flag used by that
sub-command.
BUG=None
TEST=`brillo_update_payload command --help` for the different commands.
Change-Id: I2a1d5c0f0a7cb04bf6d0f4495de83fb66e134c1b
Reviewed-on: https://chromium-review.googlesource.com/302625
Commit-Ready: Alex Deymo <deymo@chromium.org>
Tested-by: Alex Deymo <deymo@chromium.org>
Reviewed-by: Jason Kusuma <jkusuma@chromium.org>
1 file changed
