Update variable name to match unit name

ethutil/common_test.go

@@ -36,9 +36,9 @@ func TestCommon(t *testing.T) {
 	ether := CurrencyToString(BigPow(10, 19))
 	finney := CurrencyToString(BigPow(10, 16))
 	szabo := CurrencyToString(BigPow(10, 13))
-	vito := CurrencyToString(BigPow(10, 10))
-	turing := CurrencyToString(BigPow(10, 7))
-	eins := CurrencyToString(BigPow(10, 4))
+	shannon := CurrencyToString(BigPow(10, 10))
+	babbage := CurrencyToString(BigPow(10, 7))
+	ada := CurrencyToString(BigPow(10, 4))
 	wei := CurrencyToString(big.NewInt(10))
 
 	if ether != "10 Ether" {
@@ -53,16 +53,16 @@ func TestCommon(t *testing.T) {
 		t.Error("Got", szabo)
 	}
 
-	if vito != "10 Shannon" {
-		t.Error("Got", vito)
+	if shannon != "10 Shannon" {
+		t.Error("Got", shannon)
 	}
 
-	if turing != "10 Babbage" {
-		t.Error("Got", turing)
+	if babbage != "10 Babbage" {
+		t.Error("Got", babbage)
 	}
 
-	if eins != "10 Ada" {
-		t.Error("Got", eins)
+	if ada != "10 Ada" {
+		t.Error("Got", ada)
 	}
 
 	if wei != "10 Wei" {