consensus/clique: fix test copy paste error, test what's documented

consensus/clique/snapshot_test.go

@@ -246,10 +246,10 @@ func TestClique(t *testing.T) {
 			// Votes from deauthorized signers are discarded immediately (auth votes)
 			signers: []string{"A", "B", "C"},
 			votes: []testerVote{
-				{signer: "C", voted: "B", auth: false},
+				{signer: "C", voted: "D", auth: true},
 				{signer: "A", voted: "C", auth: false},
 				{signer: "B", voted: "C", auth: false},
-				{signer: "A", voted: "B", auth: false},
+				{signer: "A", voted: "D", auth: true},
 			},
 			results: []string{"A", "B"},
 		}, {