Merge "init: reset errno in do_start" into main am: 05089114 am: 6011f614...

Merge "init: reset errno in do_start" into main am: 05089114 am: 6011f614 am: 3698ced0 am: c815e16b am: 1e32ba80

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2720693



Change-Id: I6f072ecbfc2c49df54e1c97f2d3b1664c49a15e3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>