anchor.diff:  XCCDF benchmarks and OVAL definitions and generate the appropriate
   results. Please note that SCAP content can be provided either in a
   single file (as an OVAL file or SCAP Data Stream), or as multiple
  -separate XML files. The following examples distinguish between these two
  +separate XML files. The following examples distinguish between these
   approaches.
   
   ==== OVAL
  
positive.code: profile from the XCCDF document, *xccdf-results.xml* is a file storing
  the scan results, and *cpe-dictionary.xml* is the CPE dictionary.
  
  
  * To evaluate a specific XCCDF benchmark that is part of a data stream
  within a SCAP data stream collection run the following command:
  
  ----
  $ oscap xccdf eval --datastream-id ds.xml --xccdf-id xccdf.xml --results xccdf-results.xml scap-ds.xml
  
negative.code: xccdf:Benchmark containing in a component, and *xccdf-results.xml* is a
  file containing the scan results.
  
  ==== Results DataStream (ARF)
  
  In the examples above we are generating XCCDF result files using the `--results`
  command-line argument. You can use `--results-arf` to generate a Result DataStream
  (also called ARF - Asset Reporting Format) XML instead.
  
  --------------------------------------------------------------------------------------
  $ oscap xccdf eval --benchmark-id benchmark_id --results-arf arf-results.xml scap-ds.xml
  