anchor.diff:  ----
   $ oc set env -f rc.json STORAGE=/opt -o yaml > rc.yaml
   ----
  +
  +[[automatically-added-environment-variables]]
   === Automatically Added Environment Variables
   
   .Automatically Added Environment Variables
  
positive.code: container and run `oc set env` to list all available variables.
  ====
  
  == Unset Environment Variables
  
  To unset environment variables in the pod templates:
  
negative.code: ----
  $ oc set env rc r1 --containers='c1' ENV-
  ----
  