JSDocs fix

Author: photonstorm

src/input/InputPlugin.js

@@ -531,6 +531,9 @@ var InputPlugin = new Class({
      *
      * @method Phaser.Input.InputPlugin#updatePoll
      * @since 3.18.0
+     * 
+     * @param {number} time - The current time. Either a High Resolution Timer value if it comes from Request Animation Frame, or Date.now if using SetTimeout.
+     * @param {number} delta - The delta time in ms since the last frame. This is a smoothed and capped value based on the FPS rate.
      *
      * @return {boolean} `true` if the plugin and the Scene it belongs to is active.
      */