apropos(1) on OpenBSD
The text d11736b8ac84, as OpenBSD 5.7 shipped it.
search manual page databases
Flags it lists
-
-C -
-M -
-O -
-S -
-a -
-c -
-f -
-h -
-i -
-k -
-l -
-m -
-s -
-w