[automerger skipped] libprocessgroup: Use WriteStringToFd for WriteFileAction...

[automerger skipped] libprocessgroup: Use WriteStringToFd for WriteFileAction am: 14583503 -s ours am: cff7952d -s ours am: 0cad4c44 -s ours am: 573aff33 -s ours am: b83b16e6 -s ours

am skip reason: Merged-In Id79f9e1095f52079393c58edb9a4d526f4cc6b5e with SHA-1 d4c53518 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/17061322



Change-Id: Ia9ec1df47d53614716fea54ef5011c4cad66311a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>