noexcept for <forward_list>.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@132553 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/deque b/include/deque
index 71fa7f8..6ada42a 100644
--- a/include/deque
+++ b/include/deque
@@ -948,7 +948,7 @@
 
 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
     void swap(__deque_base& __c)
-        _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value||
+        _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value ||
                    __is_nothrow_swappable<allocator_type>::value);
 protected:
     void clear() _NOEXCEPT;