Switch XFAIL format to match LLVM.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85880 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/blocks-2.c b/test/CodeGen/blocks-2.c
index bc6c2b9..acbaafd 100644
--- a/test/CodeGen/blocks-2.c
+++ b/test/CodeGen/blocks-2.c
@@ -1,7 +1,7 @@
 // RUN: clang-cc -g %s -emit-llvm -o %t -fblocks &&
 // RUN: grep "func.start" %t | count 4
 // 1 declaration, 1 bar, 1 test_block_dbg and 1 for the block.
-// XFAIL
+// XFAIL: *
 
 static __inline__ __attribute__((always_inline)) int bar(int va, int vb) { return (va == vb); }