[scudo] Rework Vector/String am: 53aea5c442 am: 18edcc3387 am: d0d822c1cb am: 1b60b56372

Original change: https://android-review.googlesource.com/c/platform/external/scudo/+/1729750

Change-Id: Icf548bdf862c64ab055991d403a691fab66a8bce