Remove references to _.

isError.js

@@ -11,17 +11,16 @@ const errorTag = '[object Error]';
  * `SyntaxError`, `TypeError`, or `URIError` object.
  *
  * @static
- * @memberOf _
  * @since 3.0.0
  * @category Lang
  * @param {*} value The value to check.
  * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
  * @example
  *
- * _.isError(new Error);
+ * isError(new Error);
  * // => true
  *
- * _.isError(Error);
+ * isError(Error);
  * // => false
  */
 function isError(value) {