extra whitespace

Author: nikomatsakis

src/test/run-pass/shape_intrinsic_tag_then_rec.rs

@@ -1,5 +1,5 @@
 // Exercises a bug in the shape code that was exposed
-// on x86_64: when there is a tag embedded in an 
+// on x86_64: when there is a tag embedded in an
 // interior record which is then itself interior to
 // something else, shape calculations were off.
 use std;