Duplicate option --usage (already --help)

[Jari Aalto]

There is confusing option --usage whose description is different from --help. Still, they both return same information.

$ bzr start-service --usage
$ bzr start-service --help

Options:
  --usage Show usage message and options.
  -v, --verbose Display more information.
  -q, --quiet Only display errors and warnings.
  -h, --help Show help message.

Please consider removing non-standardly named --usage option.

[John A Meinel (jameinel)]

--help and --usage are automatically added to all bzr commands, this isn't something specific to 'bzr-service'

They are similar, but not identical (though they may be identical for this specific command).

Specifically:
  --usage
     Print out the option arguments
  --help
    Print out the option arguments and the documentation for how everything is used.

As an example
$ bzr st --usage | wc -l
43

$ bzr st --help | wc -l
92