[scudo][NFC] Fix clang-tidy warnings am: b91a547f83 am: a4bf8fbeef am: a3d243367d am: 0d7ba49557

Original change: https://android-review.googlesource.com/c/platform/external/scudo/+/1698912

Change-Id: Iae4e29c4a34035092a9e5e4ec89441c8ac86199b