Merge branch '4.4' into 5.0

* 4.4:
  [DOCS] Updated performance page opcache file name

Author: OskarStark

performance.rst

@@ -110,7 +110,7 @@ The preload file path is the same as the compiled service container but with the
 .. code-block:: ini
 
     ; php.ini
-    opcache.preload=/path/to/project/var/cache/prod/App_KernelProdContainer.preload.php
+    opcache.preload=/path/to/project/var/cache/prod/srcApp_KernelProdContainer.preload.php
 
 .. _performance-configure-opcache: