Merge pull request #934 from wurstchristoph/patch-1

log parameter instead of 'hi'

developer_manual/app/logging.rst

@@ -61,7 +61,7 @@ and then be used in the following way:
         }
 
         public function log($message) {
-            $this->logger->error('hi', array('app' => $this->appName));
+            $this->logger->error($message, array('app' => $this->appName));
         }
 
     }
@@ -76,4 +76,4 @@ The following methods are available:
 * **warning**
 * **notice**
 * **info**
-* **debug**
+* **debug**