FvwmM4(1) on Linux
The text 5f9b03f1fc56, as Debian 11 (Bullseye), Debian 10 (Buster) shipped it. The page shows this text now.
the fvwm M4 pre-processor
Flags it lists
-
-debug -
-lock -
-m4-equote -
-m4-prefix -
-m4-prefix-defines -
-m4-squote -
-m4opt -
-m4prog -
-noread -
-outfile