tryaffix(1) on Linux
The text d5c51aa3ad3c, as Debian 11 (Bullseye) shipped it.
Interactive spelling checking
Flags it lists
-
-B -
-C -
-H -
-P -
-S -
-T -
-W -
-b -
-d -
-g -
-m -
-n -
-o -
-p -
-t -
-w -
-x