[libc++] NFC: Normalize `#endif //` comment indentation

GitOrigin-RevId: 4cd6ca102a94e1b64ba3f940cc26b4d7b2b82964
diff --git a/include/__tuple b/include/__tuple
index 4da9ec5..082ec86 100644
--- a/include/__tuple
+++ b/include/__tuple
@@ -134,7 +134,7 @@
 
 } // namespace detail
 
-#endif  // !__has_builtin(__make_integer_seq) || defined(_LIBCPP_TESTING_FALLBACK_MAKE_INTEGER_SEQUENCE)
+#endif // !__has_builtin(__make_integer_seq) || defined(_LIBCPP_TESTING_FALLBACK_MAKE_INTEGER_SEQUENCE)
 
 #if __has_builtin(__make_integer_seq)
 template <size_t _Ep, size_t _Sp>
@@ -548,4 +548,4 @@
 
 _LIBCPP_END_NAMESPACE_STD
 
-#endif  // _LIBCPP___TUPLE
+#endif // _LIBCPP___TUPLE