gnu11 is the default now. am: ceb1e694d9 am: c1eba809ea

Original change: https://android-review.googlesource.com/c/platform/external/newfs_msdos/+/2097133

Change-Id: I20d79a4517ce4d98f5f8fb9983f6682b713902ae
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>