GNU findutils 4.11.0 for slicc's
wasm realm: find and xargs only (no locate / updatedb).
-exec / -execdir / -ok and xargs (including -P) go through slicc's
fork + slicc_spawn path.
Since 4.11.0-2 find and xargs run as the process slicc-kernel says they
are (the slicc credential library, homescoop#459) and look users and groups
up in the kernel's /etc/passwd and /etc/group, so -user root,
-user cone, -uid 0, -group, -nouser and -printf '%u %g' work under
users mode. 4.11.0-1 rejected user names and showed numbers.