remove space before self closing xml tag

Author: OskarStark

configuration/environment_variables.rst

@@ -642,7 +642,7 @@ Symfony provides the following env var processors:
                     http://symfony.com/schema/dic/services/services-1.0.xsd">
 
                 <mongodb:config>
-                    <mongodb:client name="default" connectTimeoutMS="%env(int:key:timeout:query_string:MONGODB_URL)%" />
+                    <mongodb:client name="default" connectTimeoutMS="%env(int:key:timeout:query_string:MONGODB_URL)%"/>
                 </mongodb:config>
             </container>
 

service_container/alias_private.rst

@@ -175,7 +175,7 @@ or you decided not to maintain it anymore), you can deprecate its definition:
             <services>
                 <service id="app.mailer" alias="App\Mail\PhpMailer">
                     <!-- this will display a generic deprecation message... -->
-                    <deprecated />
+                    <deprecated/>
 
                     <!-- ...but you can also define a custom deprecation message -->
                     <deprecated>The "%alias_id%" service alias is deprecated. Don't use it anymore.</deprecated>