mpack(1) on Linux
The text 0944e746c504, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
pack a file in MIME format
Flags it lists
-
-a