docs(selection.js): Minor documentation updates/fixes.

Author: Portugal, Marcelo

src/features/selection/js/selection.js

@@ -474,7 +474,7 @@
          * @description Toggles row as selected or unselected
          * @param {Grid} grid grid object
          * @param {GridRow} row row to select or deselect
-         * @param {Event} event object if resulting from event
+         * @param {Event} evt object if resulting from event
          * @param {bool} multiSelect if false, only one row at time can be selected
          * @param {bool} noUnselect if true then rows cannot be unselected
          */
@@ -516,8 +516,8 @@
          * @methodOf  ui.grid.selection.service:uiGridSelectionService
          * @description selects a group of rows from the last selected row using the shift key
          * @param {Grid} grid grid object
-         * @param {GridRow} clicked row
-         * @param {Event} event object if raised from an event
+         * @param {GridRow} row clicked row
+         * @param {Event} evt object if raised from an event
          * @param {bool} multiSelect if false, does nothing this is for multiSelect only
          */
         shiftSelect: function (grid, row, evt, multiSelect) {