gofmt: Fix formatting

auth_test.go

@@ -8,7 +8,7 @@ func stringsEqual(a, b []string) bool {
 	if len(a) != len(b) {
 		return false
 	}
-	for i, _ := range a {
+	for i := range a {
 		if a[i] != b[i] {
 			return false
 		}