reformime(1) on Linux
The text 49b5fe9cd982, as Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch) shipped it.
MIME E-mail reformatting tool
Flags it lists
-
-D -
-H -
-O -
-X -
-c -
-d -
-e -
-h -
-i -
-m -
-o -
-r -
-r7 -
-r8 -
-s -
-u -
-x -
-xPREFIX