I don't think it matters a jot if you borrowed a line. What did wild Oscar say? Talent works and genius steal? Something like that. Dylan stole half songs, Paul Simon, Madonna - they're all it, Dick. It's a nodding tribute to that song - like the bass line in Dub Be Good To Me. A tribute to Guns o' Brixton. It's an old line in a new song and works well in it's new place. Don't worry though, it's still in it's old place too. Like a whore, who can sell their goods and then still have them goods to sell to the next man.