Fixed undeclared properties

tests/Monolog/Formatter/ScalarFormatterTest.php

@@ -3,6 +3,8 @@ namespace Monolog\Formatter;
 
 class ScalarFormatterTest extends \PHPUnit_Framework_TestCase
 {
+    private $formatter;
+
     public function setUp()
     {
         $this->formatter = new ScalarFormatter();

tests/Monolog/Handler/DynamoDbHandlerTest.php

@@ -15,6 +15,8 @@ use Monolog\TestCase;
 
 class DynamoDbHandlerTest extends TestCase
 {
+    private $client;
+
     public function setUp()
     {
         if (!class_exists('Aws\DynamoDb\DynamoDbClient')) {