Automatic Review

There are a couple of issues in the code that warrant attention:

Documentation:
The changes to the documentation—specifically the renaming of the language option description—could lead to confusion if it does not clarify the default behavior. The original message specified a default language (English), which is important information for users who may not actively set a language. Updating the documentation to incorporate this context would greatly enhance usability.

Suggestion for improvement:
Modify the line in the cli.go file to include the default behavior as follows:

flags.StringVar(&language, "language", "", "Specify the output language (default: en)")

This change maintains clarity about what the default output language is, thus preventing potential ambiguity.

Completeness:
When specifying a new language output option, it is important to ensure that all supported languages are documented somewhere in the readme or within a command to prevent confusion about the options available to the user.

Suggestion for improvement:
Add a section in the README or an inline command that lists available languages. For example:

## Supported Languages

- English
- Japanese
- [List other supported languages here]

This addition ensures users know which languages can be specified as output.

Error Handling:
The handling of the -language argument does not seem to validate if the provided language is a supported one. This could result in unexpected behavior or errors during execution if an unsupported language is specified.

Suggestion for improvement:
Implement a validation check for the language input to ensure it matches a predefined list of supported languages. This can be done in the Run function:

supportedLanguages := []string{"en", "Japanese", "..."} // Add all supported languages here
isValidLanguage := false
for _, l := range supportedLanguages {
    if language == l {
        isValidLanguage = true
        break
    }
}
if !isValidLanguage {
    fmt.Println("Error: Unsupported language specified")
    return 1 // or appropriate error handling
}

This adjustment will improve robustness by preemptively catching configuration errors and guiding the user towards valid options.