Merge "Revert "init: Fix a race condition in KillProcessGroup()"" am:...

Merge "Revert "init: Fix a race condition in KillProcessGroup()"" am: 8462ceef am: 81d97512 am: 8aca2a37

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2280631



Change-Id: I4bafe22105cc37055924d4f9b5ef298087d616b5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>