--default doesn't exist and it's not mentioned in help. I think it was meant to be --base:
OVERVIEW: Automatically find .lproj files within a directory and compare them
USAGE: locheck discoverlproj [--base <base>] [<directories> ...] [--ignore <ignore> ...] [--ignore-missing] [--ignore-warnings] [--treat-warnings-as-errors]
ARGUMENTS:
<directories> One or more directories full of .lproj files, with one of them being authoritative (defined by --base).
OPTIONS:
--base <base> The authoritative language. Defaults to 'en'. (default: en)
--ignore <ignore> Ignore a rule completely.
--ignore-missing Ignore 'missing string' errors. Shorthand for '--ignore key_missing_from_base --ignore key_missing_from_translation'.
--ignore-warnings Ignore all warning-level issues.
--treat-warnings-as-errors
Return a non-zero exit code if any warnings, not just errors, were encountered.
-h, --help Show help information.
--default
doesn't exist and it's not mentioned in help. I think it was meant to be--base
: