Changed error message for ObjectSafetyViolation::SupertraitSelf

Author: mandeep

src/librustc/traits/object_safety.rs

@@ -46,7 +46,7 @@ impl ObjectSafetyViolation {
                 "the trait cannot require that `Self : Sized`".into(),
             ObjectSafetyViolation::SupertraitSelf =>
                 "the trait cannot use `Self` as a type parameter \
-                 in the supertrait listing".into(),
+                 in the supertraits or where-clauses".into(),
             ObjectSafetyViolation::Method(name, MethodViolationCode::StaticMethod) =>
                 format!("method `{}` has no receiver", name).into(),
             ObjectSafetyViolation::Method(name, MethodViolationCode::ReferencesSelf) =>