update-leap(1) on Linux
The text 352451cffdcc, as Debian 10 (Buster) shipped it.
leap-seconds file manager/updater
Flags it lists
-
-! -
--destination -
--dont-wait -
--expiration -
--force-update -
--help -
--ipv4 -
--more-help -
--ntp-conf-file -
--source-url -
--version -
-4 -
-? -
-F -
-d -
-e -
-f -
-s -
-v