autoupdate-dickey(1) on Linux
The text 44de58a0293a, as Debian 11 (Bullseye) shipped it.
Update a configure.in to a newer Autoconf
Flags it lists
-
--autoconf-dir -
--debug -
--help -
--localdir -
--verbose -
--version -
-A -
-V -
-d -
-h -
-l -
-v