Text files should end with a valid new line character.

More information: https://insight.symfony.com/what-we-analyse/missing_e_o_l

in config/packages/messenger.yaml, line 24 
  2.             failed:
  3.                 dsn: 'doctrine://default?queue_name=failed'
  5.         # routing:
  6.         #     App\Message\SendContactEmail: async
    This file ends with no newline character, or with a different newline character than other files in your project. It won't render properly on a terminal, and it's considered a bad practice.
    Time to fix: about 15 minutes
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                                    Last edited  by Luigi Gandemer