rs(1) on FreeBSD
The text f5c3bd1b5688, as FreeBSD 10.4-RELEASE shipped it.
reshape a data array
Flags it lists
-
-C -
-G -
-H -
-K -
-S -
-T -
-c -
-e -
-g -
-h -
-j -
-k -
-m -
-n -
-s -
-t -
-w -
-y -
-z