update-language-dat(8) on Linux
The text 8669abcf90e9, as Debian 9 (Stretch) shipped it.
generate hyphenation configuration for TeX engines
Flags it lists
-
--checks -
--conf-file -
--help -
--output-dir -
--quiet -
--version -
-? -
-c -
-d -
-h -
-q