$ sudo mv /etc/apt/sources.list /etc/apt/sources.list.b0rken $ sudo sed s/\ independent// /etc/apt/sources.list.b0rken > /etc/apt/sources.list
does the trick without breaking anything
$ sudo mv /etc/apt/ sources. list /etc/apt/ sources. list.b0rken sources. list.b0rken > /etc/apt/ sources. list
$ sudo sed s/\ independent// /etc/apt/
does the trick without breaking anything