http://kawbtpskqu7rr3t6ecz4fyutpzq7jtblin3wv5vamneryu4nwenhkgyd.onion/mediawiki/index.php?title=Special:Version/License/Vector
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user...