Fix rustfmt errors

Author: igelado

bindgen-integration/build.rs

@@ -44,9 +44,9 @@ impl ParseCallbacks for MacroCallback {
                 assert_eq!(value, b"string");
                 *self.seen_hellos.lock().unwrap() += 1;
             }
-            "TESTMACRO_STRING_EXPANDED"
-            | "TESTMACRO_STRING"
-            | "TESTMACRO_INTEGER" => {
+            "TESTMACRO_STRING_EXPANDED" |
+            "TESTMACRO_STRING" |
+            "TESTMACRO_INTEGER" => {
                 // The integer test macro is, actually, not expected to show up here at all -- but
                 // should produce an error if it does.
                 assert_eq!(

bindgen/callbacks.rs

@@ -52,8 +52,7 @@ pub trait ParseCallbacks: fmt::Debug {
     }
 
     /// Modify the contents of a macro
-    fn modify_macro(&self, _name: &str, _tokens: &mut Vec<Token>) {
-    }
+    fn modify_macro(&self, _name: &str, _tokens: &mut Vec<Token>) {}
 
     /// The integer kind an integer macro should have, given a name and the
     /// value of that macro, or `None` if you want the default to be chosen.