hmm_view(1) on Linux
The text c0a67d96e7b7, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster) shipped it. The page shows this text now.
produces a graphical description of the state-transition
Flags it lists
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-C -
-R -
-i -
-k -
-t -
-x