jupp(1) on Linux
The text 9c9a077bb2b5, as Debian 8 (Jessie) shipped it.
Joe's Own Editor
Flags it lists
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-asis -
-autoindent -
-backpath -
-baud -
-beep -
-columns -
-crlf -
-csmode -
-dopadding -
-exask -
-force -
-help -
-hex -
-indentc -
-istep -
-keepup -
-keymap -
-lightoff -
-lines -
-linums -
-lmargin -
-marking -
-mid -
-nobackups -
-nonotice -
-nosta -
-noxon -
-orphan -
-overwrite -
-pg -
-rdonly -
-rmargin -
-skiptop -
-tab -
-wordwrap