ulockmgr_server(1) on Linux
The text 6a96152c2570, as Arch Linux 2026-11-01, Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it. The page shows this text now.
Lock Manager Server for FUSE filesystems