bug fix: usix: use the correct constant

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@24728 44c647ce-9c0f-0410-b52a-842ac1e357ba

tests/Zend/Service/WindowsAzure/AllTests.php

@@ -64,7 +64,7 @@ class Zend_Service_WindowsAzure_AllTests
     {
         $suite = new PHPUnit_Framework_TestSuite('Zend Framework - Zend_Service_WindowsAzure');
 
-        if (TESTS_ZEND_SERVICE_WINDOWSAZURE_DIAGNOSTICS_RUNTESTS) {
+        if (TESTS_ZEND_SERVICE_WINDOWSAZURE_CREDENTIALS_RUNTESTS) {
             $suite->addTest(Zend_Service_WindowsAzure_Credentials_AllTests::suite());
         }