Use the reserved spellings for attributes

Change the no_sanitize attribute to use the reserved spelling.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@260195 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/__config b/include/__config
index a61b406..44b9163 100644
--- a/include/__config
+++ b/include/__config
@@ -436,7 +436,7 @@
 
 // Allow for build-time disabling of unsigned integer sanitization
 #if !defined(_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK) && __has_attribute(no_sanitize)
-#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute((no_sanitize("unsigned-integer-overflow")))
+#define _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK __attribute__((__no_sanitize__("unsigned-integer-overflow")))
 #endif 
 
 #elif defined(__GNUC__)