fsck_ffs(8) on OpenBSD
The text dd7dd60bba3b, as OpenBSD 3.3, OpenBSD 3.2, OpenBSD 3.1, OpenBSD 3.0, OpenBSD 2.9 shipped it.
Fast File System consistency check and interactive repair
Flags it lists
-
-b -
-c -
-f -
-m -
-n -
-y