btt_xml2db reads the XML document specified on the commandline and imports
any "Infohash" records found into a mod_bt database. If any of the specified
infohashes already exist in the tracker database, they will be replaced. The
XML document should be one that was generated with btt_db2xml.
The ``Peers'', ``Seeds'', and ``Shields'' counts from the XML document are discarded;
these fields are instead set to the counts of who is actually connected to
the tracker, or ``0'' if this is a new infohash.
btt_xml2db can be used to create a new tracker database, like so: