Merge "Clarify the fcntl() "that's not how F_SETFD works" error." into main am: b4e2219987

Original change: https://android-review.googlesource.com/c/platform/bionic/+/2780900

Change-Id: I24088e1c91afc29509177e7d6c44ce913e2eaa9b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>