Fix typo

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@289781 91177308-0d34-0410-b5e6-96231b3b80d8

test/std/utilities/utility/pairs/pairs.pair/dtor.pass.cpp

@@ -31,5 +31,5 @@ int main()
   static_assert((std::is_trivially_destructible<
       std::pair<int, float> >::value), "");
   static_assert((!std::is_trivially_destructible<
-      std::pair<int, std::string>::value), "");
+      std::pair<int, std::string> >::value), "");
 }