Do not write past end of inotify event structure. am: 4541d3c7 am: 1f209406 am: e6c97ae8 am: 0c15cbd1

Original change: https://googleplex-android-review.googlesource.com/c/platform/bootable/recovery/+/16034932

Change-Id: Ic257d4f2a66a437108e6183b3782875012e53481