Remove references to _.

lowerCase.js

@@ -4,20 +4,19 @@ import createCompounder from './_createCompounder.js';
  * Converts `string`, as space separated words, to lower case.
  *
  * @static
- * @memberOf _
  * @since 4.0.0
  * @category String
  * @param {string} [string=''] The string to convert.
  * @returns {string} Returns the lower cased string.
  * @example
  *
- * _.lowerCase('--Foo-Bar--');
+ * lowerCase('--Foo-Bar--');
  * // => 'foo bar'
  *
- * _.lowerCase('fooBar');
+ * lowerCase('fooBar');
  * // => 'foo bar'
  *
- * _.lowerCase('__FOO_BAR__');
+ * lowerCase('__FOO_BAR__');
  * // => 'foo bar'
  */
 const lowerCase = createCompounder((result, word, index) => result + (index ? ' ' : '') + word.toLowerCase());