[BUGFIX] Absolute web path in acceptance test

Change-Id: I0dbf8514bd3b7dc7d182dde5d6e52f451bc79c42
Resolves: #73507
Related: #73479
Releases: master
Reviewed-on: https://review.typo3.org/46731


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>

typo3/sysext/core/Tests/Acceptance/Backend/LoginMouseOverCept.php

@@ -5,7 +5,7 @@
 
 $I = new AcceptanceTester($scenario);
 $I->wantTo('check login functions');
-$I->amOnPage('/typo3');
+$I->amOnPage('/typo3/index.php');
 $I->waitForElement('#t3-username', 10);
 $I->wantTo('mouse over css change login button');