scudo/standalone: prepare for enabling format string checking am: b0e1b4d2dc am: d90449303f am: f7188e1ef4

Original change: https://android-review.googlesource.com/c/platform/external/scudo/+/1798892

Change-Id: Ib3c2c34c336c7f1f2da51c97933dc36eeb61de30