style_derive: Fix tidy lint.

components/style_derive/specified_value_info.rs

@@ -3,10 +3,10 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use cg;
+use parse::ParseVariantAttrs;
 use quote::Tokens;
 use syn::{Data, DeriveInput, Fields, Ident, Type};
 use to_css::{CssFieldAttrs, CssInputAttrs, CssVariantAttrs};
-use parse::ParseVariantAttrs;
 
 pub fn derive(mut input: DeriveInput) -> Tokens {
     let css_attrs = cg::parse_input_attrs::<CssInputAttrs>(&input);