Some fixes about upgrade from 2.0.x -> 2.1.0

tests/Wallabag/CoreBundle/Controller/TagControllerTest.php

@@ -47,7 +47,7 @@ class TagControllerTest extends WallabagCoreTestCase
 
         $this->assertEquals(1, count($entry->getTags()));
 
-        # tag already exists and already assigned
+        // tag already exists and already assigned
         $client->submit($form, $data);
         $this->assertEquals(302, $client->getResponse()->getStatusCode());
 
@@ -58,7 +58,7 @@ class TagControllerTest extends WallabagCoreTestCase
 
         $this->assertEquals(1, count($newEntry->getTags()));
 
-        # tag already exists but still not assigned to this entry
+        // tag already exists but still not assigned to this entry
         $data = [
             'tag[label]' => 'foo',
         ];

tests/Wallabag/CoreBundle/WallabagCoreTestCase.php

@@ -83,7 +83,7 @@ abstract class WallabagCoreTestCase extends WebTestCase
 
     /**
      * Check if Redis is installed.
-     * If not, mark test as skip
+     * If not, mark test as skip.
      */
     protected function checkRedis()
     {

tests/Wallabag/UserBundle/Mailer/AuthCodeMailerTest.php

@@ -37,7 +37,7 @@ class AuthCodeMailerTest extends \PHPUnit_Framework_TestCase
         );
         $this->mailer = new \Swift_Mailer($transport);
 
-        $twigTemplate = <<<TWIG
+        $twigTemplate = <<<'TWIG'
 {% block subject %}subject{% endblock %}
 {% block body_html %}html body {{ code }}{% endblock %}
 {% block body_text %}text body {{ support_url }}{% endblock %}