Fix typo it _LIBCPP_NO_EXCEPTIONS macro

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@268838 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/exception b/include/exception
index 537e4e3..186d379 100644
--- a/include/exception
+++ b/include/exception
@@ -80,7 +80,7 @@
 #include <__config>
 #include <cstddef>
 #include <type_traits>
-#if defined(_LIBCPP_HAS_NO_EXCEPTIONS)
+#if defined(_LIBCPP_NO_EXCEPTIONS)
 #include <cstdio>
 #include <cstdlib>
 #endif
@@ -260,7 +260,7 @@
 template <class _Exception>
 _LIBCPP_INLINE_VISIBILITY
 inline void __libcpp_throw(_Exception const& __e) {
-#ifndef _LIBCPP_HAS_NO_EXCEPTIONS
+#ifndef _LIBCPP_NO_EXCEPTIONS
     throw __e;
 #else
     _VSTD::fprintf(stderr, "%s\n", __e.what());