docs: fix description

Author: kgryte

lib/node_modules/@stdlib/ndarray/map/lib/main.js

@@ -39,7 +39,7 @@ var format = require( '@stdlib/string/format' );
 * @param {string} [options.dtype] - output array data type
 * @param {Callback} fcn - callback function
 * @param {*} [thisArg] - callback execution context
-* @throws {TypeError} first argument must have a recognized data type
+* @throws {TypeError} first argument must be an ndarray-like object
 * @throws {TypeError} callback argument must be a function
 * @throws {TypeError} options argument must be an object
 * @returns {ndarray} output ndarray