        - standard error output
    perltidyrc        - the .perltidyrc file
    logfile           - the .LOG file stream, if any
    errorfile         - the .ERR file stream, if any
    dump_options      - ref to a hash to receive parameters (see below),
    dump_options_type - controls contents of dump_options
    dump_getopt_flags - ref to a hash to receive Getopt flags
    dump_options_category - ref to a hash giving category of options
    dump_abbreviations    - ref to a hash giving all abbreviations<