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package opts
import "fmt"
// A BadOptionError describes an option that the user attempted to pass
// which the developer did not register.
type BadOptionError rune
func (e BadOptionError) Error() string {
return fmt.Sprintf("unknown option ‘%c’", e)
}
// A NoArgumentError describes an option that the user attempted to pass
// without an argument, which required an argument.
type NoArgumentError rune
func (e NoArgumentError) Error() string {
return fmt.Sprintf("expected argument for option ‘%c’", e)
}
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