Fix whitespace in tests

Author: SiegeLord

src/test/auxiliary/struct_variant_xc_aux.rs

@@ -14,4 +14,4 @@
 
 pub enum Enum {
     Variant { arg: u8 }
-} 
+}

src/test/run-pass/struct_variant_xc.rs

@@ -14,5 +14,5 @@ extern mod struct_variant_xc_aux;
 use struct_variant_xc_aux::Variant;
 
 fn main() {
-	let _ = Variant { arg: 1 };
+    let _ = Variant { arg: 1 };
 }