otags(1) on Linux
The text 74e8634399fe, as Debian 9 (Stretch) shipped it.
generate tags files for emacs and vi/vim from OCaml sources
Flags it lists
-
--help -
-I -
-a -
-add-path -
-extern -
-help -
-impl -
-intern -
-intf -
-o -
-pa -
-parser-hints -
-pc -
-pp -
-pr -
-q -
-r -
-v -
-version -
-vi