Method usageError

deps/npm/lib/base-cmd.js:175–182

(prefix = '')

  }

  usageError (prefix = '') {
    if (prefix) {
      prefix += '\n\n'
    }
    return Object.assign(new Error(`\n${prefix}${this.usage}`), {
      code: 'EUSAGE',
    })
  }

  // Compare the number of entries with what was expected
  checkExpected (entries) {