Fix some tests that didn't test anything.

llvm-svn: 106954
diff --git a/llvm/test/Transforms/LoopRotate/phi-duplicate.ll b/llvm/test/Transforms/LoopRotate/phi-duplicate.ll
index cac00f8..9a64e2a 100644
--- a/llvm/test/Transforms/LoopRotate/phi-duplicate.ll
+++ b/llvm/test/Transforms/LoopRotate/phi-duplicate.ll
@@ -30,6 +30,6 @@
 ; Should only end up with one phi.
 ; CHECK: for.body:
 ; CHECK-NEXT: %j.02 = phi i64
-; CHECK-NOT phi
+; CHECK-NOT: phi
 ; CHECK: ret void