--dev is default and causes a warning

DQNEO · xabbuh · commit ce518db98720 · 2015-07-02T20:24:38.000+02:00
diff --git a/contributing/code/tests.rst b/contributing/code/tests.rst
@@ -45,7 +45,7 @@ the follow command:
 
 .. code-block:: bash
 
-    $ composer --dev update
+    $ composer update
 
 Running
 -------
