Merge pull request #3480 from zwarich/trailing-whitespace

Fix trailing whitespace tidy errors

Reviewed-by: larsbergstrom

components/plugins/lints.rs

@@ -145,3 +145,4 @@ impl LintPass for UnrootedPass {
         }
     }
 }
+

components/script/dom/bindings/trace.rs

@@ -237,3 +237,4 @@ impl<'a> JSTraceable for &'a str {
         // Do nothing
     }
 }
+

components/script/dom/macros.rs

@@ -64,3 +64,4 @@ macro_rules! untraceable(
         }
     );
 )
+