sftp-server(8) on macOS
The text f37d2f423c54, as Mac OS X 10.5.2, Mac OS X 10.5.1, Mac OS X 10.5, Mac OS X 10.4.11.x86, Mac OS X 10.4.11.ppc, Mac OS X 10.4.10.x86, Mac OS X 10.4.10.ppc, Mac OS X 10.4.9.x86, Mac OS X 10.4.9.ppc shipped it.
SFTP server subsystem
Flags it lists
-
-f -
-l