Fixed typo in method name

src/Symfony/Bundle/FrameworkBundle/Command/AbstractConfigCommand.php

@@ -38,7 +38,7 @@ class AbstractConfigCommand extends ContainerDebugCommand
         $table->render($output);
     }
 
-    protected function findExtention($name)
+    protected function findExtension($name)
     {
         $extension = null;
 

src/Symfony/Bundle/FrameworkBundle/Command/ConfigDebugCommand.php

@@ -64,7 +64,7 @@ EOF
             return;
         }
 
-        $extension = $this->findExtention($name);
+        $extension = $this->findExtension($name);
 
         $kernel = $this->getContainer()->get('kernel');
         $method = new \ReflectionMethod($kernel, 'buildContainer');

src/Symfony/Bundle/FrameworkBundle/Command/ConfigDumpReferenceCommand.php

@@ -73,7 +73,7 @@ EOF
             return;
         }
 
-        $extension = $this->findExtention($name);
+        $extension = $this->findExtension($name);
 
         $configuration = $extension->getConfiguration(array(), $this->getContainerBuilder());