libstdc++: Fix error in doxygen comments in <atomic>

libstdc++-v3/ChangeLog:

	* include/std/atomic: Add missing @endcond doxygen comment.

diff --git a/libstdc++-v3/include/std/atomic b/libstdc++-v3/include/std/atomic
index faf7eb95594ebd9c37ee85fcad871576c5c32357..94150c1181f2b8e6145c2aca301ee01914adb3ae 100644 (file)
--- a/libstdc++-v3/include/std/atomic
+++ b/libstdc++-v3/include/std/atomic
@@ -1287,6 +1287,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     using __atomic_val_t = __type_identity_t<_Tp>;
   template<typename _Tp>
     using __atomic_diff_t = typename atomic<_Tp>::difference_type;
+  /// @endcond
 
   // [atomics.nonmembers] Non-member functions.
   // Function templates generally applicable to atomic types.