-p, --print-format FORMAT  (default: varies)::
  Specify the format in which the properties should be printed. The
  command uses a different default value for this, depending on the
  input URL. FORMAT may be one of the following values:
  - 'enum'
  - 'json'    - available only if quvi was built with JsonGLib
  - 'rfc2483'
  - 'xml'     - available only if quvi was built with libxml

NOTE: The default value varies, see DEFAULT BEHAVIOUR.

  config: core.print-format=<FORMAT>

