chore(tooltip): clean up code style

Author: wesleycho

src/tooltip/tooltip.js

@@ -129,7 +129,7 @@ angular.module('ui.bootstrap.tooltip', ['ui.bootstrap.position', 'ui.bootstrap.s
       return {
         restrict: 'EA',
         compile: function(tElem, tAttrs) {
-          var tooltipLinker = $compile( template );
+          var tooltipLinker = $compile(template);
 
           return function link(scope, element, attrs, tooltipCtrl) {
             var tooltip;