sftp-server(8) on OpenBSD
The text 163daf64267f, as OpenBSD 7.9, OpenBSD 7.8, OpenBSD 7.7, OpenBSD 7.6, OpenBSD 7.5, OpenBSD 7.4, OpenBSD 7.3, OpenBSD 7.2, OpenBSD 7.1, OpenBSD 7.0 shipped it.
OpenSSH SFTP server subsystem
Flags it lists
-
-P -
-Q -
-R -
-d -
-e -
-f -
-h -
-l -
-p -
-u