fmq_unit_tests: Detect leaked FDs more efficiently am: 8676f1dbd6 am: 3d765532b9 Original change: https://android-review.googlesource.com/c/platform/system/libfmq/+/3108669 Change-Id: I7a4996a366c471afb68f0a4012dd6c9d0260acd4 Signed-off-by: Automerger Merge Worker <[email protected]>