Minor doc nits. [ci skip]

lodash.js

@@ -9467,7 +9467,7 @@
      * @example
      *
      * jQuery(element).on('click', _.before(5, addContactToList));
-     * // => allows adding up to 4 contacts to the list
+     * // => Allows adding up to 4 contacts to the list.
      */
     function before(n, func) {
       var result;
@@ -10028,7 +10028,7 @@
      * var initialize = _.once(createApplication);
      * initialize();
      * initialize();
-     * // `initialize` invokes `createApplication` once
+     * // => `createApplication` is invoked once
      */
     function once(func) {
       return before(2, func);