repo: standardize help behavior

Standard utilities exit normally/zero when users explicitly request
--help, and they write to stdout.  Exiting non-zero & using stderr
is meant for incorrect tool usage instead.  We're already doing this
for `repo help <init|gitc-init>` calls, so lets fix `repo help` and
`repo --help|-h` to match.

Change-Id: Ia4f352b431c91eefef70dcafc11f00209ee69809
1 file changed
tree: e37743ffcb92762ee8f2d92c8f6b3c92bf1c60f5
  1. docs/
  2. hooks/
  3. subcmds/
  4. tests/
  5. .flake8
  6. .gitattributes
  7. .gitignore
  8. .mailmap
  9. .project
  10. .pydevproject
  11. color.py
  12. command.py
  13. COPYING
  14. editor.py
  15. error.py
  16. event_log.py
  17. git_command.py
  18. git_config.py
  19. git_refs.py
  20. git_ssh
  21. gitc_utils.py
  22. main.py
  23. manifest_xml.py
  24. pager.py
  25. platform_utils.py
  26. platform_utils_win32.py
  27. progress.py
  28. project.py
  29. pyversion.py
  30. README.md
  31. repo
  32. SUBMITTING_PATCHES.md
  33. trace.py
  34. wrapper.py
README.md

repo

Repo is a tool built on top of Git. Repo helps manage many Git repositories, does the uploads to revision control systems, and automates parts of the development workflow. Repo is not meant to replace Git, only to make it easier to work with Git. The repo command is an executable Python script that you can put anywhere in your path.