old_contents: /*
    Note to self:
    function (a) {
      return typeof a === 'object' && !!a.length
    }
  
  */
  
  function isArray (value) {
    return Object.prototype.toString.call(value) === '[object Array]'
  }
  
  module.exports = Array.isArray || isArray
  
new_contents: /*
    Note to self:
    function (a) {
      return typeof a === 'object' && !!a.length
    }
  
  */
  
  function isArray (value) {
    return Object.prototype.toString.call(value) === '[object Array]'
  }
  
  /* istanbul ignore next */
  module.exports = Array.isArray || isArray
  module.exports.isArr = isArray
  
subject: update lang/isArray — tmp fix until I figure my way around this