ftjam(1) on Linux
The text 5e12e250bed5, as Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch) shipped it. The page shows this text now.
Make(1) Redux
Flags it lists
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-a -
-d -
-f -
-g -
-j -
-n -
-o -
-q -
-s -
-t -
-v