Skip test on php 5.3

Trying to fix: PHP Fatal error:  Call to a member function getCurrency() on a non-object in /home/travis/build/piwik/piwik/plugins/Live/API.php on line 554
https://travis-ci.org/piwik/piwik/jobs/22318726
Note: this should not happen really and I'm puzzled... especially as it works on other PHP versions...

tests/PHPUnit/Integration/AutoSuggestAPITest.php

@@ -31,7 +31,7 @@ class Test_Piwik_Integration_AutoSuggestAPITest extends IntegrationTestCase
     {
 
         // on Travis this test seg faults for no reason eg: https://github.com/piwik/piwik/commit/94d0ce393b2c496cda571571a0425af846406fda
-        $isPhp53 = strpos(PHP_VERSION, '5.3') == 0;
+        $isPhp53 = strpos(PHP_VERSION, '5.3') === 0;
         if($isPhp53) {
             $this->markTestSkipped("Skipping this test as it seg faults on php 5.3 (bug triggered on travis)");
         }