[MonologBundle] Added (commented) configuration for log format

Author: lyrixx

symfony/monolog-bundle/3.1/config/packages/dev/monolog.yaml

@@ -17,3 +17,7 @@ monolog:
             type: console
             process_psr_3_messages: false
             channels: ["!event", "!doctrine", "!console"]
+            # # As of Symfony 4.3 you can configure the log output:
+            # console_formater_options:
+            #     format: "%%datetime%% %%start_tag%%%%level_name%%%%end_tag%% <comment>[%%channel%%]</> %%message%%%%context%%\n"
+            #     multiline: false