title: Hystrix's health endpoint not available
body: <p>I'm trying to use the Circuit Breaker Pattern with Springboot and Netflix's Hystrix implementation and I'm struggling to access its health endpoint. </p>
  
  <p>The documentation refers it should be available in <code>/hystrix.stream</code> but that's not happening. Also, I've noticed the following error upon theapplication initialisation: <code>Endpoint ID 'hystrix.stream' contains invalid characters, please migrate to a valid format.</code>. </p>
  
  <p>Does someone know how to solve this issue or how to change the endpoint name?</p>
  
  <p>Versions:</p>
  
  <p><code>Springboot 2.1.4.RELEASE</code></p>
  
  <p><code>Spring Cloud Greenwich.SR1</code></p>
  
  <p>Thanks in advance!</p>