anchor.diff:  
   ### <a id='VCAP-APP-HOST'></a>VCAP\_APP\_HOST
   
  -The IP address of the host. Deprecated: the DEAs set this to be `0.0.0.0`,
  -and Diego Cells do not provide this environment variable.
  +The IP address of the host. Deprecated: the DEAs set this to be `0.0.0.0`, and 
  +Diego Cells do not provide this environment variable.
   
   `VCAP_APP_HOST=0.0.0.0`
   
  
positive.code: ### <a id='PORT'></a>PORT ###
  
  The port on which the application should listen for requests.
  The Cloud Foundry runtime allocates a port dynamically for each instance
  of the application, so code that obtains or uses the application port
  should refer to it via the `PORT` environment variable.
  
  `PORT=61857`
  
  ### <a id='PWD'></a>PWD ###
  Identifies the present working directory, where the buildpack that processed the
  application ran.
  
  `PWD=/home/vcap/app`
  
  
negative.code: 
  ### <a id='VCAP-SERVICES'></a>VCAP\_SERVICES ###
  
  For [bindable services](../services/), Cloud Foundry adds connection details to 
  the `VCAP_SERVICES` environment variable when you restart your application, 
  after binding a service instance to your application.
  
  The results are returned as a JSON document that contains an object for each 
  service for which one or more instances are bound to the application.
  The service object contains a child object for each service instance of that
  service that is bound to the application.
  