title: How can I remove prefix with service name from logs?
body: <p>docker-compose inserts prefixes like <code>service_1           |</code> in the beginning of every line of output. I use this container for testing and this kind of improvement (very useful in other cases) mess my debugging logs and I want to remove it for this service. <a href="https://docs.docker.com/compose/compose-file/#logging" rel="noreferrer">Documentation</a> have no information about this question. Any ideas?<br>
  my <code>docker-compose.yml</code>:</p>
  
  <pre><code>version: '3'
  services:
    rds:
      image: postgres:9.4
      ports:
        - ${POSTGRES_PORT}:5432
      environment:
        POSTGRES_USER: ${POSTGRES_USER}
        POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
    dynamo:
      image: iarruss/dynamo-local-admin:latest
      ports:
        - ${DYNAMODB_PORT}:8000
    python:
      container_name: python
      image: iarruss/docker-python2:latest
      depends_on:
        - rds
        - dynamo
      environment:
        POSTGRES_HOST: rds
        POSTGRES_USER: ${POSTGRES_USER}
        POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
        DYNAMODB_HOST: dynamo
  </code></pre>
  
  <p><strong>Edit:</strong> Clarify expected result  </p>
  
  <p>Current output:</p>
  
  <pre><code>python             |
  python             | collected 511 items
  python             |
  python             | tests/test_access.py
  python             |
  </code></pre>
  
  <p>Expected output:</p>
  
  <pre><code>collected 511 items
  
  test_access.py                                                     
  </code></pre>