Merge branch '4.4' into 5.0

* 4.4: Update messenger.rst

Author: OskarStark

messenger.rst

@@ -1024,7 +1024,7 @@ override it in the ``test`` environment to use this transport:
  framework:
  messenger:
  transports:
- async_priority_normal: 'in-memory:///'
+ async_priority_normal: 'in-memory://'
 
  .. code-block:: xml
 
@@ -1040,7 +1040,7 @@ override it in the ``test`` environment to use this transport:
 
  <framework:config>
  <framework:messenger>
- <framework:transport name="async_priority_normal" dsn="in-memory:///"/>
+ <framework:transport name="async_priority_normal" dsn="in-memory://"/>
  </framework:messenger>
  </framework:config>
  </container>
@@ -1052,7 +1052,7 @@ override it in the ``test`` environment to use this transport:
  'messenger' => [
  'transports' => [
  'async_priority_normal' => [
- 'dsn' => 'in-memory:///',
+ 'dsn' => 'in-memory://',
  ],
  ],
  ],