Minor shopfloor server cleanup.

- Add defaults to usage string
- Use "shopfloor-data" as the default data-dir argument, and create it
  if it doesn't exist (e.g., for the base shopfloor server)
- Rename registration code log to registration_code_log.csv (so it is
  clear that is a log file, not an input file)

BUG=None
TEST=shopfloor_unittest.py

Change-Id: I38065538a0918bcf357ec65e7405615bfdeb7d8a
Reviewed-on: https://gerrit.chromium.org/gerrit/29124
Tested-by: Jon Salz <jsalz@chromium.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Commit-Ready: Jon Salz <jsalz@chromium.org>
3 files changed
tree: 9c8c04f0708c4da343259087f546a36199919f7f
  1. .gitignore
  2. OWNERS
  3. cros_bundle/
  4. factory_setup/