new function: modify_sources_list. Required for downloading usewithtor/torsocks. [(diff)][1] [1]: https://trac.torproject.org/projects/tor/wiki/doc/TorBOX/Dev/TWScript?action=diff&version=133 URL: https://trac.torproject.org/projects/tor/wiki/doc/TorBOX/Dev/TWScript?version=133