Merge "Replace exit codes with EXIT_SUCCESS and EXIT_FAILURE." am: 1dcc3255 am: 9955a72d

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2298858



Change-Id: I710b9dbebab5e27cb019b4f030d8a66ae06b5292
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>