adjust this to bourne shell syntax


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71070 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Misc/caret-diags-macros.c b/test/Misc/caret-diags-macros.c
index 0a5aa07..58d293f 100644
--- a/test/Misc/caret-diags-macros.c
+++ b/test/Misc/caret-diags-macros.c
@@ -1,4 +1,4 @@
-// RUN: clang-cc -fsyntax-only %s >& %t &&
+// RUN: clang-cc -fsyntax-only %s > %t 2>&1 &&
 
 #define M1(x) x