Merge "libprocessgroup: return false on failure" am: 64f953e2

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2059547



Change-Id: Ia13c2b23e5d3c10fbcbe6e0758ed9d6e97209cd6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>