Fix llvm-undname tests after r358485
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358487 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Demangle/invalid-manglings.test b/test/Demangle/invalid-manglings.test
index 2673770..dcfc99f 100644
--- a/test/Demangle/invalid-manglings.test
+++ b/test/Demangle/invalid-manglings.test
@@ -1,5 +1,5 @@
; Run llvm-undname with invalid inputs and make sure it doesn't crash.
-; RUN: llvm-undname < %s 2>&1 | FileCheck %s
+; RUN: not llvm-undname < %s 2>&1 | FileCheck %s
?ff@@$$J0YAXAU?$AS_@$0A@PEAU?$AS_@$0A@H@__clang@@@__clang@@@Z
; CHECK: ?ff@@$$J0YAXAU?$AS_@$0A@PEAU?$AS_@$0A@H@__clang@@@__clang@@@Z
