Merge "posix_spawn_file_actions_addopen(): crash early rather than late." am: 6ef483eb87 am: f658816d6b

Original change: https://android-review.googlesource.com/c/platform/bionic/+/2515747

Change-Id: Id3c4156cb875d0e004d7110652e363be9c60b35b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>